Generation, Imaging and Control of Novel Coherent Electronic States in Artificial Ferromagnetic-Superconducting Hybrid Metamaterials and Devices

Lead Research Organisation: University of St Andrews
Department Name: Physics and Astronomy

Abstract

Condensed matter physicists are constantly looking for interesting new states of matter and new materials with unique exploitable properties which reflect the complex quantum mechanical interactions of the electrons that bind them together. These electronic properties can sometimes be approximated to the sum of individual electrons moving within the material, such as the electrical conduction of electrons in simple metals or semiconductors like silicon. The properties are on the whole more interesting, however, when an accurate description of the material needs to account for the collective and correlated motion of large numbers of electrons. Such collective physics leads to the familiar ferromagnetic properties of materials like iron and, less familiarly, the phenomenon of superconductivity. In the latter electrons are able to flow through the bulk of a superconducting material without generating heat and extraordinarily high electrical currents become possible. This finds application, for example, in the large superconducting magnets required for MRI body scanners. Magnetism and superconductivity are often antagonistic phenomena, since they involve different arrangements of the spins of electrons. Spin is a quantum property of electrons that gives rise to intrinsic magnetic fields - it can be visualised as a tiny compass needle attached to each electron. In ferromagnetism all the spins point in the same direction, but in conventional superconductivity the electrons form pairs (Cooper pairs) in which the spins point in opposite directions. Ferromagnetism therefore normally destroys these Cooper pairs, and hence superconductivity, by causing their spins to align parallel.
Condensed matter physicists often look for new materials where ferromagnetism and superconductivity coexist, since this can suggest the presence of some exotic new form of superconductivity (or other novel quantum state). One example is spin-triplet superconductivity, in which the spins of a Cooper pair prefer to be aligned parallel rather than antiparallel. One way to try and engender such exotic states of matter is to grow artificial materials by depositing very thin superconducting and ferromagnetic films (a few nm thick) on top of one another. In this way the properties of the final structure can be tuned, sometimes leading it to exhibit behaviours that have never been found in naturally occurring bulk materials. An example of this is a unique kind of spin-triplet (so called odd-frequency) superconductivity that has recently been demonstrated in this type of thin film structure. The production of artificial materials can be taken a step further if one also patterns such thin film materials in the plane of the film using advanced electron beam lithography technology, to produce additional patterns and structures on the nanoscale. Such an approach could lead not only to the discovery of interesting new quantum phases, but could also to useful properties that could be exploited in future technologies, such as quantum computing.
In this project we bring together a team of experts with a diverse range of skills that can grow, pattern, measure and undertake theoretical studies on the type of nanostructured materials discussed above. One particularly novel aspect of our approach is the use of powerful imaging techniques involving neutron, muons, X-rays and bespoke scanning magnetic sensors to gain unique insights into both the basic physics at play in systems exhibiting odd-frequency triplet superconductivity as well as the relation between the detailed magnetic and physical structures and their exotic properties. Although the basic aim of this project is the pursuit of new scientific knowledge, we will be looking for interesting effects and properties that might find future applications.

Planned Impact

The primary outcome of our research will be the generation of new specialist scientific knowledge. While it is not our intention with this proposal to address directly issues of wealth creation we believe that several aspects of the associated knowledge, techniques and training have wider societal value. The project will employ six post-doctoral researchers and offers a remarkably rich and varied training environment with a high level of PDRA mobility, leading to the development of expertise in a wide range of complementary cutting-edge experimental and theoretical techniques. These include many skills that have direct relevance to industry and commerce e.g. nanolithography and thin film deposition; programming, numerical simulation and modelling; advanced analytical modelling; novel electronics and instrument design. These provide good examples of high-level training and application of the scientific method that are cornerstones of the knowledge-based economy. We will endeavour to provide an appropriate level of skill acquisition and training, in both specialist and generic skills, to support this objective. The skills base is extremely relevant to key areas within the secondary education sector. The provision of high-level training of personnel is thus a key route to wider societal benefit.
While not the prime motivator of this research programme, some of the knowledge we will generate and techniques we will develop have the potential to be directly relevant to areas of high-tech industry. An example of previous engagement with industry is our application of neutron techniques to probe aspects of thin-film magnetic data storage, undertaken in collaboration with major global companies in this area. In the current proposal we extend these and other techniques to new levels of sensitivity which could directly benefit research on, for example, bit patterned media intended for future data storage solutions. Other areas of emerging economic impact that could also benefit from some of the techniques include the layered technology used in organic electronics and photovoltaics, and indeed other groups have begun to adopt similar approaches to measurement in this area. There are also more immediate connections with the field of spintronics where the manipulation of spin as well as charge offers additional degrees of freedom in futuristic electronic devices. The planned research will begin to explore some of the many potential opportunities for integrating superconductivity with spintronics thus helping to establish a UK presence in an area of potential future importance for wealth creation. We note in this context the 2010 European Roadmap on Superconductive Electronics produced by the Fluxonics Society, a society comprising several industrial companies, European government research labs and Universities.
Although this research project is not focused on the generation of IPR nor strong liaisons with industry in this context, we are nonetheless mindful of possibilities to which we will remain receptive and agile. IPR generated as a result of research performed within the project will be covered by a legal Consortium Agreement. Several of us are involved with research projects involving industrial collaborators and sponsors and we are embedded in organisations with a commitment to knowledge exchange. St Andrews for example is a member of the Scottish Universities Physics Alliance (SUPA) that has its own Knowledge Transfer Directorate comprising a full time Director and several Business Development Managers. Both Royal Holloway and ISIS are members of the South East Physics Network (SEPNET), which has outstanding connections to a large number of companies and is strongly engaged in joint PhD programmes, projects and vacation placements. There is thus significant opportunity for exploring issues of wealth creation should they arise, through these and similar arrangements at all the nodes in the project.

Publications

10 25 50
 
Description The addition of magnetic layer to a superconducting one is usually determinental to the latter. We have discovered an effect whereby on the contrary a thin magnetic layer may enhance the screening currents inside a thin superconducting layer, which has become known as the electromagnetic-screening effect and which has led to a number of theoretical papers that explain our experimental findings.
Exploitation Route These could find application in superconducting spintronic applications.
Sectors Digital/Communication/Information Technologies (including Software),Electronics,Energy,Other

 
Description Controlling Emergent Orders in Quantum Materials
Amount £1,012,019 (GBP)
Funding ID EP/R031924/1 
Organisation Engineering and Physical Sciences Research Council (EPSRC) 
Sector Public
Country United Kingdom
Start 07/2018 
End 06/2022
 
Description Emergent Nanomaterials (Critical Mass Proposal)
Amount £1,562,333 (GBP)
Funding ID EP/R023522/1 
Organisation Engineering and Physical Sciences Research Council (EPSRC) 
Sector Public
Country United Kingdom
Start 06/2018 
End 05/2022
 
Title Beating the Stoner Criterion 
Description  
Type Of Material Database/Collection of data 
Year Produced 2015 
Provided To Others? Yes  
 
Title Collective Magnetism In An Artificial 2D Xy Spin System 
Description Open access data set for manuscript "Collective magnetism in an artificial 2D XY spin system" published in Nature Communicaltion 2018. 
Type Of Material Database/Collection of data 
Year Produced 2018 
Provided To Others? Yes  
 
Title Data on Emergent Magnetism in Metallo-Carbon Interfaces. 
Description  
Type Of Material Database/Collection of data 
Year Produced 2017 
Provided To Others? Yes  
 
Title Data set for 'Control of superconductivity with a single ferromagnetic layer in niobium/erbium bilayers' 
Description Superconducting spintronics in hybrid superconductor{ferromagnet (S{F) heterostructures provides an exciting potential new class of device. The prototypical super-spintronic device is the superconducting spin-valve, where the critical temperature, Tc, of the S-layer can be controlled by the relative orientation of two (or more) F-layers. Here, we show that such control is also possible in a simple S/F bilayer. Using Field history to set the remanent magnetic state of a thin Er layer, we demonstrate for a Nb/Er bilayer a high level of control of both Tc and the shape of the resistive transition, R(T), to zero resistance. We are able to model the origin of the remanent magnetization, treating it as an increase in the effective exchange Field of the ferromagnet and link this, using conventional S{F theory, to the suppression of Tc. We observe stepped features in the R(T) which we argue is due to a fundamental interaction of superconductivity with inhomogeneous ferromagnetism, a phenomena currently lacking theoretical description. 
Type Of Material Database/Collection of data 
Year Produced 2017 
Provided To Others? Yes  
 
Title Data underpinning article "Diverse family of layered frustrated magnets with tailorable inter-layer interactions" 
Description Raw single crystal and powder diffraction data 
Type Of Material Database/Collection of data 
Year Produced 2017 
Provided To Others? Yes  
 
Title Data underpinning: Manifestation of the electromagnetic proximity effect in superconductor-ferromagnet thin film structures 
Description M(H) squid data; LEM stopping profiles and raw data sets (in .root and .nemu format) 
Type Of Material Database/Collection of data 
Year Produced 2019 
Provided To Others? Yes  
 
Title Data underpinning: Observation of Anomalous Meissner Screening in Cu=Nb and Cu=Nb=Co Thin Films 
Description R(T) and Hc2(T) transport data; LEM stopping profiles and raw data sets (in .root and .nemu format) 
Type Of Material Database/Collection of data 
Year Produced 2018 
Provided To Others? Yes  
 
Title Data underpinning:Remotely induced magnetism in a normal metal using a superconducting spin-valve 
Description  
Type Of Material Database/Collection of data 
Year Produced 2015 
Provided To Others? Yes  
 
Title Dataset for "Continuously Tuneable Critical Current in Superconductor-Ferromagnet Multilayers" 
Description Datasets underpinning the four Figures for "Continuously Tuneable Critical Current in Superconductor-Ferromagnet Multilayers" which is accepted for publication in Applied Physics Letters. 
Type Of Material Database/Collection of data 
Year Produced 2017 
Provided To Others? Yes  
 
Title Irreversible Magnetization Switching at the onset of Superconductivity in a Superconductor Ferromagnet Hybrid 
Description The archive contains a separate folder for each figure in the article. A single README.txt file describes the files contained in each folder. 
Type Of Material Database/Collection of data 
Year Produced 2015 
Provided To Others? Yes  
 
Description Collaboration on Artificial Magnetic Materials 
Organisation ETH Zurich
Department Department of Health Sciences and Technology
Country Switzerland 
Sector Academic/University 
PI Contribution The overall aims of the project are to explore using lithographic or other means to explore aspects of statistical physics and magnetic interactions by the creation of anlalogues of complex materials or systems that come close to idealised models of theoretical physics. We provided expertise on nanomagnetism and muon spin spectoscopy, especially in relation to thin film samples.
Collaborator Contribution The partners at PSI provide both the samples (LMS) and the muon beamtime (LMU). Theoretical support is also provided from PSI via the Condensed Matter theory group.
Impact The principal outout to date is publication DOI: 10.1038/ncomms9278. Other work is ongoing and in preparation. Thermodynamic phase transitions in a frustrated magnetic metamaterial L. Anghinolfi , H. Luetkens, J. Perron, M.G. Flokstra, O. Sendetskyi, A. Suter, T. Prokscha, P.M. Derlet, S.L. Lee & L.J. Heyderman Nature Communications DOI: 10.1038/ncomms9278
Start Year 2015
 
Description Collaboration on Artificial Magnetic Materials 
Organisation National Center for Scientific Research (Centre National de la Recherche Scientifique CNRS)
Department IN2P3 CNRS
Country France 
Sector Academic/University 
PI Contribution The overall aims of the project are to explore using lithographic or other means to explore aspects of statistical physics and magnetic interactions by the creation of anlalogues of complex materials or systems that come close to idealised models of theoretical physics. We provided expertise on nanomagnetism and muon spin spectoscopy, especially in relation to thin film samples.
Collaborator Contribution The partners at PSI provide both the samples (LMS) and the muon beamtime (LMU). Theoretical support is also provided from PSI via the Condensed Matter theory group.
Impact The principal outout to date is publication DOI: 10.1038/ncomms9278. Other work is ongoing and in preparation. Thermodynamic phase transitions in a frustrated magnetic metamaterial L. Anghinolfi , H. Luetkens, J. Perron, M.G. Flokstra, O. Sendetskyi, A. Suter, T. Prokscha, P.M. Derlet, S.L. Lee & L.J. Heyderman Nature Communications DOI: 10.1038/ncomms9278
Start Year 2015
 
Description Collaboration on Artificial Magnetic Materials 
Organisation Paul Scherrer Institute
Department Condensed Matter Theory Group
Country Switzerland 
Sector Academic/University 
PI Contribution The overall aims of the project are to explore using lithographic or other means to explore aspects of statistical physics and magnetic interactions by the creation of anlalogues of complex materials or systems that come close to idealised models of theoretical physics. We provided expertise on nanomagnetism and muon spin spectoscopy, especially in relation to thin film samples.
Collaborator Contribution The partners at PSI provide both the samples (LMS) and the muon beamtime (LMU). Theoretical support is also provided from PSI via the Condensed Matter theory group.
Impact The principal outout to date is publication DOI: 10.1038/ncomms9278. Other work is ongoing and in preparation. Thermodynamic phase transitions in a frustrated magnetic metamaterial L. Anghinolfi , H. Luetkens, J. Perron, M.G. Flokstra, O. Sendetskyi, A. Suter, T. Prokscha, P.M. Derlet, S.L. Lee & L.J. Heyderman Nature Communications DOI: 10.1038/ncomms9278
Start Year 2015
 
Description Collaboration on Artificial Magnetic Materials 
Organisation Paul Scherrer Institute
Department Laboratory for Muon Spin Spectroscopy
Country Switzerland 
Sector Charity/Non Profit 
PI Contribution The overall aims of the project are to explore using lithographic or other means to explore aspects of statistical physics and magnetic interactions by the creation of anlalogues of complex materials or systems that come close to idealised models of theoretical physics. We provided expertise on nanomagnetism and muon spin spectoscopy, especially in relation to thin film samples.
Collaborator Contribution The partners at PSI provide both the samples (LMS) and the muon beamtime (LMU). Theoretical support is also provided from PSI via the Condensed Matter theory group.
Impact The principal outout to date is publication DOI: 10.1038/ncomms9278. Other work is ongoing and in preparation. Thermodynamic phase transitions in a frustrated magnetic metamaterial L. Anghinolfi , H. Luetkens, J. Perron, M.G. Flokstra, O. Sendetskyi, A. Suter, T. Prokscha, P.M. Derlet, S.L. Lee & L.J. Heyderman Nature Communications DOI: 10.1038/ncomms9278
Start Year 2015
 
Description Collaboration on Artificial Magnetic Materials 
Organisation Paul Scherrer Institute
Department Laboratory of Atmospheric Chemistry
Country Switzerland 
Sector Charity/Non Profit 
PI Contribution The overall aims of the project are to explore using lithographic or other means to explore aspects of statistical physics and magnetic interactions by the creation of anlalogues of complex materials or systems that come close to idealised models of theoretical physics. We provided expertise on nanomagnetism and muon spin spectoscopy, especially in relation to thin film samples.
Collaborator Contribution The partners at PSI provide both the samples (LMS) and the muon beamtime (LMU). Theoretical support is also provided from PSI via the Condensed Matter theory group.
Impact The principal outout to date is publication DOI: 10.1038/ncomms9278. Other work is ongoing and in preparation. Thermodynamic phase transitions in a frustrated magnetic metamaterial L. Anghinolfi , H. Luetkens, J. Perron, M.G. Flokstra, O. Sendetskyi, A. Suter, T. Prokscha, P.M. Derlet, S.L. Lee & L.J. Heyderman Nature Communications DOI: 10.1038/ncomms9278
Start Year 2015
 
Description Collaboration on Artificial Magnetic Materials 
Organisation Sorbonne University
Country France 
Sector Academic/University 
PI Contribution The overall aims of the project are to explore using lithographic or other means to explore aspects of statistical physics and magnetic interactions by the creation of anlalogues of complex materials or systems that come close to idealised models of theoretical physics. We provided expertise on nanomagnetism and muon spin spectoscopy, especially in relation to thin film samples.
Collaborator Contribution The partners at PSI provide both the samples (LMS) and the muon beamtime (LMU). Theoretical support is also provided from PSI via the Condensed Matter theory group.
Impact The principal outout to date is publication DOI: 10.1038/ncomms9278. Other work is ongoing and in preparation. Thermodynamic phase transitions in a frustrated magnetic metamaterial L. Anghinolfi , H. Luetkens, J. Perron, M.G. Flokstra, O. Sendetskyi, A. Suter, T. Prokscha, P.M. Derlet, S.L. Lee & L.J. Heyderman Nature Communications DOI: 10.1038/ncomms9278
Start Year 2015
 
Description Collaboration on Novel Quantum Order 
Organisation University of Edinburgh
Country United Kingdom 
Sector Academic/University 
PI Contribution We are collaborating on combined muon, neutron and magnetisation measurements of systems exhibiting novel forms of quantum order. Currently we are undertaking magetisation and muon experiments.
Collaborator Contribution The partners (Dr Chris Stock) is both growing powders and single crystals of novel materials and providing structural an inelastic neutron characterisation.
Impact No outputs yet.
Start Year 2018
 
Description Collaboration on Novel Spin Triplet Generating Samples 
Organisation Hitachi
Country Japan 
Sector Private 
PI Contribution We provide expertise on neutron and muon measurements to characterise the magnetic structure and to look for signatures of novel physics
Collaborator Contribution Partners provide specialist high-quality and well-characterised samples
Impact Publication 10.1103/PhysRevB.89.054510. More papers are in preparation.
Start Year 2012
 
Description Collaboration on Novel Spin Triplet Generating Samples 
Organisation Leiden University
Department Leiden Institute of Physics
Country Netherlands 
Sector Academic/University 
PI Contribution We provide expertise on neutron and muon measurements to characterise the magnetic structure and to look for signatures of novel physics
Collaborator Contribution Partners provide specialist high-quality and well-characterised samples
Impact Publication 10.1103/PhysRevB.89.054510. More papers are in preparation.
Start Year 2012
 
Description Collaboration on Novel Spin Triplet Generating Samples 
Organisation University of Cambridge
Department Department of Materials Science & Metallurgy
Country United Kingdom 
Sector Academic/University 
PI Contribution We provide expertise on neutron and muon measurements to characterise the magnetic structure and to look for signatures of novel physics
Collaborator Contribution Partners provide specialist high-quality and well-characterised samples
Impact Publication 10.1103/PhysRevB.89.054510. More papers are in preparation.
Start Year 2012
 
Description Collaboration on Organic Electronics 
Organisation Brookhaven National Laboratory
Country United States 
Sector Public 
PI Contribution We have provided expertise on muon spectroscopy, particularly in the area of magnetic and superconducting thin films. The general aim of the project is to explore the influence of organic materials in layered structures intended for application in spintronic and related technologies. This includes the modification of layers adjacent to organic layers and also the transfer of charge and spin onto the organic layers e.g. C60.
Collaborator Contribution The project is led by Dr Oscar Cespedes at the University of Leeds who is an expert in the growth and development of these types of systems. He has provided samples and undertaken the sample development for muon experiments over which we have collaborated.
Impact To date the principal output had been a letter to Nature doi:10.1038/nature14621 , though more publications are in preparation. Beating the Stoner criterion using molecular interfaces Fatma Al Ma'Mari1, Timothy Moorsom, Gilberto Teobaldi, William Deacon, Thomas Prokscha, Hubertus Luetkens,Steve Lee, George E. Sterbinsky5, Dario A. Arena, Donald A. MacLaren, Machiel Flokstra, Mannan Ali, May C. Wheeler,Gavin Burnell, Bryan J. Hickey & Oscar Cespedes Nature 524 69 (2015).
Start Year 2013
 
Description Collaboration on Organic Electronics 
Organisation Paul Scherrer Institute
Department Laboratory for Micro and Nanotechnology
Country Switzerland 
Sector Charity/Non Profit 
PI Contribution We have provided expertise on muon spectroscopy, particularly in the area of magnetic and superconducting thin films. The general aim of the project is to explore the influence of organic materials in layered structures intended for application in spintronic and related technologies. This includes the modification of layers adjacent to organic layers and also the transfer of charge and spin onto the organic layers e.g. C60.
Collaborator Contribution The project is led by Dr Oscar Cespedes at the University of Leeds who is an expert in the growth and development of these types of systems. He has provided samples and undertaken the sample development for muon experiments over which we have collaborated.
Impact To date the principal output had been a letter to Nature doi:10.1038/nature14621 , though more publications are in preparation. Beating the Stoner criterion using molecular interfaces Fatma Al Ma'Mari1, Timothy Moorsom, Gilberto Teobaldi, William Deacon, Thomas Prokscha, Hubertus Luetkens,Steve Lee, George E. Sterbinsky5, Dario A. Arena, Donald A. MacLaren, Machiel Flokstra, Mannan Ali, May C. Wheeler,Gavin Burnell, Bryan J. Hickey & Oscar Cespedes Nature 524 69 (2015).
Start Year 2013
 
Description Collaboration on Organic Electronics 
Organisation University of Glasgow
Department Physics and Astronomy Department
Country United Kingdom 
Sector Academic/University 
PI Contribution We have provided expertise on muon spectroscopy, particularly in the area of magnetic and superconducting thin films. The general aim of the project is to explore the influence of organic materials in layered structures intended for application in spintronic and related technologies. This includes the modification of layers adjacent to organic layers and also the transfer of charge and spin onto the organic layers e.g. C60.
Collaborator Contribution The project is led by Dr Oscar Cespedes at the University of Leeds who is an expert in the growth and development of these types of systems. He has provided samples and undertaken the sample development for muon experiments over which we have collaborated.
Impact To date the principal output had been a letter to Nature doi:10.1038/nature14621 , though more publications are in preparation. Beating the Stoner criterion using molecular interfaces Fatma Al Ma'Mari1, Timothy Moorsom, Gilberto Teobaldi, William Deacon, Thomas Prokscha, Hubertus Luetkens,Steve Lee, George E. Sterbinsky5, Dario A. Arena, Donald A. MacLaren, Machiel Flokstra, Mannan Ali, May C. Wheeler,Gavin Burnell, Bryan J. Hickey & Oscar Cespedes Nature 524 69 (2015).
Start Year 2013
 
Description Collaboration on Organic Electronics 
Organisation University of Leeds
Department Section of Experimental Oncology
Country United Kingdom 
Sector Academic/University 
PI Contribution We have provided expertise on muon spectroscopy, particularly in the area of magnetic and superconducting thin films. The general aim of the project is to explore the influence of organic materials in layered structures intended for application in spintronic and related technologies. This includes the modification of layers adjacent to organic layers and also the transfer of charge and spin onto the organic layers e.g. C60.
Collaborator Contribution The project is led by Dr Oscar Cespedes at the University of Leeds who is an expert in the growth and development of these types of systems. He has provided samples and undertaken the sample development for muon experiments over which we have collaborated.
Impact To date the principal output had been a letter to Nature doi:10.1038/nature14621 , though more publications are in preparation. Beating the Stoner criterion using molecular interfaces Fatma Al Ma'Mari1, Timothy Moorsom, Gilberto Teobaldi, William Deacon, Thomas Prokscha, Hubertus Luetkens,Steve Lee, George E. Sterbinsky5, Dario A. Arena, Donald A. MacLaren, Machiel Flokstra, Mannan Ali, May C. Wheeler,Gavin Burnell, Bryan J. Hickey & Oscar Cespedes Nature 524 69 (2015).
Start Year 2013
 
Description Collaboration on Organic Electronics 
Organisation University of Liverpool
Department Institute of Translational Medicine
Country United Kingdom 
Sector Academic/University 
PI Contribution We have provided expertise on muon spectroscopy, particularly in the area of magnetic and superconducting thin films. The general aim of the project is to explore the influence of organic materials in layered structures intended for application in spintronic and related technologies. This includes the modification of layers adjacent to organic layers and also the transfer of charge and spin onto the organic layers e.g. C60.
Collaborator Contribution The project is led by Dr Oscar Cespedes at the University of Leeds who is an expert in the growth and development of these types of systems. He has provided samples and undertaken the sample development for muon experiments over which we have collaborated.
Impact To date the principal output had been a letter to Nature doi:10.1038/nature14621 , though more publications are in preparation. Beating the Stoner criterion using molecular interfaces Fatma Al Ma'Mari1, Timothy Moorsom, Gilberto Teobaldi, William Deacon, Thomas Prokscha, Hubertus Luetkens,Steve Lee, George E. Sterbinsky5, Dario A. Arena, Donald A. MacLaren, Machiel Flokstra, Mannan Ali, May C. Wheeler,Gavin Burnell, Bryan J. Hickey & Oscar Cespedes Nature 524 69 (2015).
Start Year 2013
 
Description Collaboration on thin film actinide materials 
Organisation University of Bristol
Country United Kingdom 
Sector Academic/University 
PI Contribution We are providing expertise on muon experiments to investigage the emergence of new magnetic and superconducting states in artificially stabilised films of actinide materials.
Collaborator Contribution The partners provide expertise in the growth and structural characterisation of the materials.
Impact No outputs yet.
Start Year 2019
 
Description SFM Consortium 
Organisation Leiden University
Department Leiden Institute of Physics
Country Netherlands 
Sector Academic/University 
PI Contribution SFM Consortium is a research collaboration between University of St Andrews, University of Bath, University of Leeds, Royal Holloway, University of London and the ISIS facility at the Rutherford Appleton Laboratory in Oxfordshire. The Consortium is funded by a Critical Mass grant from the EPSRC, with a total budget of £3.3 M, for 4 years of research which started on 1st March 2012. The Consortium also has associated members at University of Cambridge, University of Leiden and Paul Scherrer Institute. The aim of the project is to use advanced characterisation to understand and control novel ground states in hybrid superconducting-magnetic devices. The key novelty of the project is to use a range of techniques to image, in the broadest sense, signatures of these exotic ground states, in order to provide unique insight into these systems.
Collaborator Contribution The St Andrews part of the programme is focussed on the use of neutron techniques, the unique low energy muon (LEM) facility at the Paul Scherrer Institute (PSI), Switzerland and increasingly on advanced Synchrotron techniques. The Bath contribution to the programme focusses on the exploitation of novel scanning probe techniques to make spatially-resolved studies of magnetic structure and spin accumulation. The Condensed Matter Physics Group at the University of Leeds is primarily involved in sample growth and fabrication for the other experimental nodes in the collaboration. The ISIS neutron source is part of the Rutherford Appleton Laboratory in Harwell, Oxford. Their specialism is in large scale facility measurements: neutron, muon and x-ray. Royal Holloway, University of London, provides the theoretical support to the experimental activities in this consortium. TRHUL group has a strong background in superconducting spintronics and theoretical research in the field of superconductor/ferromagnet devices. The Laboratory for Micro- and Nanotechnology at PSI provide access to facilities for the advanced patterning of large area arrays of nanostrucutres and host a PDRA from the collaboration. The Laboratory for Muon Spin Spectroscopy and the Laboratory for Neutron Scattering at PSI provide additional expertise in muon and neutron techniques. The Leiden Institute of Physics provides ideas and samples for the work of the collaboration and also has STM facilities that the collaboration can make use of. The Department of Materials Science at the University of Cambridge collaborate and provide samples for some neutron and muons experiments and also discuss key results on similar systems at Consortium Meetings.
Impact Superconducting trilayer using low-energy muon-spin rotation M. G. Flokstra ,S. J. Ray, S. J. Lister, J. Aarts, H. Luetkens, T. Prokscha, A. Suter, E. Morenzoni, and S. L. Lee, Phys. Rev. B 89 054510 (2014). Muon-spin rotation measurements of the vortex state in Sr2RuO4: Type-1.5 super- conductivity, vortex clustering, and a crossover from a triangular to a square vortex lattice, S. J. Ray, A. S. Gibbs, S. J. Bending, P. J. Curran, E. Babaev, C. Baines, A. P. Mackenzie, and S. L. Lee Phys. Rev. B 89 094504 (2014). Search for spontaneous edge currents and vortex imaging in Sr2RuO4 mesostruc-tures Curran, P.J., Bending, S. J., Desoky, W., Gibbs, A. S., Lee, S. L. and Mackenzie, A. K., Phys. Rev. B 89 144504 (2014). Spin-polarized supercurrents for spintronics, M. Eschrig, Physics Today 64, pp 43-49 (2011), Feature Article. Spin polarization of (Ga,Mn)As measured by Andreev Spectroscopy: The role of spin-active scattering, S. Piano, R. Grein, C. J. Mellor, K. Vyborny, R. Campion, M. Wang, M. Eschrig, and B. L. Gallagher, Phys. Rev. B 83, 081305(R) (2011). Properties of Interfaces and Surfaces in Non-centrosymmetric Superconductors, M. Eschrig, C. Iniotakis, and Y. Tanaka, Book chapter in "Non-Centrosymmetric Superconductors", ed. E. Bauer and M. Sigrist, Springer Verlag: "Lecture Notes in Physics", Vol. 847, ISBN 978-3-642-24623-4, pp. 313-357 (2012). Tailoring the Fulde-Ferrell-Larkin-Ovchinnikov state, M. Eschrig, Annalen der Physik 524, A65 (2012); Expert Opinion. A Numerical Study of the Superconducting Proximity Effect in Topological Surface States, R. Grein, J. Michelsen, and M. Eschrig, J. Phys.: Conf. Ser. 391, 012149 (2012). Nonlocal thermoelectric effects and nonlocal Onsager relations in a three-terminal proximity coupled superconductor-ferromagnet device, P. Machon, M. Eschrig, and W. Belzig, Phys. Rev. Lett. 110, 047002 (2013). Inverse proximity effect and influence of disorder on triplet supercurrents in strongly spin-polarized ferromagnets, R. Grein, T. Lofwander, and M. Eschrig, Phys. Rev. B 88, 054502 (2013). Comment on "Unified Formalism of Andreev Reflection at a Ferromagnet -Superconductor Interface", M. Eschrig, A.A. Golubov, I.I. Mazin, B. Nadgorny, Y. Tanaka, O.T. Valls, and I. Zutic, accepted for publication in Phys. Rev. Lett. (2013). Andreev spectroscopy of CrO2 thin films on TiO2 and Al2O3, K. A. Yates, M. S. Anwar, J. Aarts, O. Conde, M. Eschrig, T. Lofwander, and L.F. Cohen, accepted for publication in EPL (2013).
Start Year 2012
 
Description SFM Consortium 
Organisation Paul Scherrer Institute
Country Switzerland 
Sector Academic/University 
PI Contribution SFM Consortium is a research collaboration between University of St Andrews, University of Bath, University of Leeds, Royal Holloway, University of London and the ISIS facility at the Rutherford Appleton Laboratory in Oxfordshire. The Consortium is funded by a Critical Mass grant from the EPSRC, with a total budget of £3.3 M, for 4 years of research which started on 1st March 2012. The Consortium also has associated members at University of Cambridge, University of Leiden and Paul Scherrer Institute. The aim of the project is to use advanced characterisation to understand and control novel ground states in hybrid superconducting-magnetic devices. The key novelty of the project is to use a range of techniques to image, in the broadest sense, signatures of these exotic ground states, in order to provide unique insight into these systems.
Collaborator Contribution The St Andrews part of the programme is focussed on the use of neutron techniques, the unique low energy muon (LEM) facility at the Paul Scherrer Institute (PSI), Switzerland and increasingly on advanced Synchrotron techniques. The Bath contribution to the programme focusses on the exploitation of novel scanning probe techniques to make spatially-resolved studies of magnetic structure and spin accumulation. The Condensed Matter Physics Group at the University of Leeds is primarily involved in sample growth and fabrication for the other experimental nodes in the collaboration. The ISIS neutron source is part of the Rutherford Appleton Laboratory in Harwell, Oxford. Their specialism is in large scale facility measurements: neutron, muon and x-ray. Royal Holloway, University of London, provides the theoretical support to the experimental activities in this consortium. TRHUL group has a strong background in superconducting spintronics and theoretical research in the field of superconductor/ferromagnet devices. The Laboratory for Micro- and Nanotechnology at PSI provide access to facilities for the advanced patterning of large area arrays of nanostrucutres and host a PDRA from the collaboration. The Laboratory for Muon Spin Spectroscopy and the Laboratory for Neutron Scattering at PSI provide additional expertise in muon and neutron techniques. The Leiden Institute of Physics provides ideas and samples for the work of the collaboration and also has STM facilities that the collaboration can make use of. The Department of Materials Science at the University of Cambridge collaborate and provide samples for some neutron and muons experiments and also discuss key results on similar systems at Consortium Meetings.
Impact Superconducting trilayer using low-energy muon-spin rotation M. G. Flokstra ,S. J. Ray, S. J. Lister, J. Aarts, H. Luetkens, T. Prokscha, A. Suter, E. Morenzoni, and S. L. Lee, Phys. Rev. B 89 054510 (2014). Muon-spin rotation measurements of the vortex state in Sr2RuO4: Type-1.5 super- conductivity, vortex clustering, and a crossover from a triangular to a square vortex lattice, S. J. Ray, A. S. Gibbs, S. J. Bending, P. J. Curran, E. Babaev, C. Baines, A. P. Mackenzie, and S. L. Lee Phys. Rev. B 89 094504 (2014). Search for spontaneous edge currents and vortex imaging in Sr2RuO4 mesostruc-tures Curran, P.J., Bending, S. J., Desoky, W., Gibbs, A. S., Lee, S. L. and Mackenzie, A. K., Phys. Rev. B 89 144504 (2014). Spin-polarized supercurrents for spintronics, M. Eschrig, Physics Today 64, pp 43-49 (2011), Feature Article. Spin polarization of (Ga,Mn)As measured by Andreev Spectroscopy: The role of spin-active scattering, S. Piano, R. Grein, C. J. Mellor, K. Vyborny, R. Campion, M. Wang, M. Eschrig, and B. L. Gallagher, Phys. Rev. B 83, 081305(R) (2011). Properties of Interfaces and Surfaces in Non-centrosymmetric Superconductors, M. Eschrig, C. Iniotakis, and Y. Tanaka, Book chapter in "Non-Centrosymmetric Superconductors", ed. E. Bauer and M. Sigrist, Springer Verlag: "Lecture Notes in Physics", Vol. 847, ISBN 978-3-642-24623-4, pp. 313-357 (2012). Tailoring the Fulde-Ferrell-Larkin-Ovchinnikov state, M. Eschrig, Annalen der Physik 524, A65 (2012); Expert Opinion. A Numerical Study of the Superconducting Proximity Effect in Topological Surface States, R. Grein, J. Michelsen, and M. Eschrig, J. Phys.: Conf. Ser. 391, 012149 (2012). Nonlocal thermoelectric effects and nonlocal Onsager relations in a three-terminal proximity coupled superconductor-ferromagnet device, P. Machon, M. Eschrig, and W. Belzig, Phys. Rev. Lett. 110, 047002 (2013). Inverse proximity effect and influence of disorder on triplet supercurrents in strongly spin-polarized ferromagnets, R. Grein, T. Lofwander, and M. Eschrig, Phys. Rev. B 88, 054502 (2013). Comment on "Unified Formalism of Andreev Reflection at a Ferromagnet -Superconductor Interface", M. Eschrig, A.A. Golubov, I.I. Mazin, B. Nadgorny, Y. Tanaka, O.T. Valls, and I. Zutic, accepted for publication in Phys. Rev. Lett. (2013). Andreev spectroscopy of CrO2 thin films on TiO2 and Al2O3, K. A. Yates, M. S. Anwar, J. Aarts, O. Conde, M. Eschrig, T. Lofwander, and L.F. Cohen, accepted for publication in EPL (2013).
Start Year 2012
 
Description SFM Consortium 
Organisation Royal Holloway, University of London
Country United Kingdom 
Sector Academic/University 
PI Contribution SFM Consortium is a research collaboration between University of St Andrews, University of Bath, University of Leeds, Royal Holloway, University of London and the ISIS facility at the Rutherford Appleton Laboratory in Oxfordshire. The Consortium is funded by a Critical Mass grant from the EPSRC, with a total budget of £3.3 M, for 4 years of research which started on 1st March 2012. The Consortium also has associated members at University of Cambridge, University of Leiden and Paul Scherrer Institute. The aim of the project is to use advanced characterisation to understand and control novel ground states in hybrid superconducting-magnetic devices. The key novelty of the project is to use a range of techniques to image, in the broadest sense, signatures of these exotic ground states, in order to provide unique insight into these systems.
Collaborator Contribution The St Andrews part of the programme is focussed on the use of neutron techniques, the unique low energy muon (LEM) facility at the Paul Scherrer Institute (PSI), Switzerland and increasingly on advanced Synchrotron techniques. The Bath contribution to the programme focusses on the exploitation of novel scanning probe techniques to make spatially-resolved studies of magnetic structure and spin accumulation. The Condensed Matter Physics Group at the University of Leeds is primarily involved in sample growth and fabrication for the other experimental nodes in the collaboration. The ISIS neutron source is part of the Rutherford Appleton Laboratory in Harwell, Oxford. Their specialism is in large scale facility measurements: neutron, muon and x-ray. Royal Holloway, University of London, provides the theoretical support to the experimental activities in this consortium. TRHUL group has a strong background in superconducting spintronics and theoretical research in the field of superconductor/ferromagnet devices. The Laboratory for Micro- and Nanotechnology at PSI provide access to facilities for the advanced patterning of large area arrays of nanostrucutres and host a PDRA from the collaboration. The Laboratory for Muon Spin Spectroscopy and the Laboratory for Neutron Scattering at PSI provide additional expertise in muon and neutron techniques. The Leiden Institute of Physics provides ideas and samples for the work of the collaboration and also has STM facilities that the collaboration can make use of. The Department of Materials Science at the University of Cambridge collaborate and provide samples for some neutron and muons experiments and also discuss key results on similar systems at Consortium Meetings.
Impact Superconducting trilayer using low-energy muon-spin rotation M. G. Flokstra ,S. J. Ray, S. J. Lister, J. Aarts, H. Luetkens, T. Prokscha, A. Suter, E. Morenzoni, and S. L. Lee, Phys. Rev. B 89 054510 (2014). Muon-spin rotation measurements of the vortex state in Sr2RuO4: Type-1.5 super- conductivity, vortex clustering, and a crossover from a triangular to a square vortex lattice, S. J. Ray, A. S. Gibbs, S. J. Bending, P. J. Curran, E. Babaev, C. Baines, A. P. Mackenzie, and S. L. Lee Phys. Rev. B 89 094504 (2014). Search for spontaneous edge currents and vortex imaging in Sr2RuO4 mesostruc-tures Curran, P.J., Bending, S. J., Desoky, W., Gibbs, A. S., Lee, S. L. and Mackenzie, A. K., Phys. Rev. B 89 144504 (2014). Spin-polarized supercurrents for spintronics, M. Eschrig, Physics Today 64, pp 43-49 (2011), Feature Article. Spin polarization of (Ga,Mn)As measured by Andreev Spectroscopy: The role of spin-active scattering, S. Piano, R. Grein, C. J. Mellor, K. Vyborny, R. Campion, M. Wang, M. Eschrig, and B. L. Gallagher, Phys. Rev. B 83, 081305(R) (2011). Properties of Interfaces and Surfaces in Non-centrosymmetric Superconductors, M. Eschrig, C. Iniotakis, and Y. Tanaka, Book chapter in "Non-Centrosymmetric Superconductors", ed. E. Bauer and M. Sigrist, Springer Verlag: "Lecture Notes in Physics", Vol. 847, ISBN 978-3-642-24623-4, pp. 313-357 (2012). Tailoring the Fulde-Ferrell-Larkin-Ovchinnikov state, M. Eschrig, Annalen der Physik 524, A65 (2012); Expert Opinion. A Numerical Study of the Superconducting Proximity Effect in Topological Surface States, R. Grein, J. Michelsen, and M. Eschrig, J. Phys.: Conf. Ser. 391, 012149 (2012). Nonlocal thermoelectric effects and nonlocal Onsager relations in a three-terminal proximity coupled superconductor-ferromagnet device, P. Machon, M. Eschrig, and W. Belzig, Phys. Rev. Lett. 110, 047002 (2013). Inverse proximity effect and influence of disorder on triplet supercurrents in strongly spin-polarized ferromagnets, R. Grein, T. Lofwander, and M. Eschrig, Phys. Rev. B 88, 054502 (2013). Comment on "Unified Formalism of Andreev Reflection at a Ferromagnet -Superconductor Interface", M. Eschrig, A.A. Golubov, I.I. Mazin, B. Nadgorny, Y. Tanaka, O.T. Valls, and I. Zutic, accepted for publication in Phys. Rev. Lett. (2013). Andreev spectroscopy of CrO2 thin films on TiO2 and Al2O3, K. A. Yates, M. S. Anwar, J. Aarts, O. Conde, M. Eschrig, T. Lofwander, and L.F. Cohen, accepted for publication in EPL (2013).
Start Year 2012
 
Description SFM Consortium 
Organisation Science and Technologies Facilities Council (STFC)
Department ISIS Neutron and Muon Source
Country United Kingdom 
Sector Academic/University 
PI Contribution SFM Consortium is a research collaboration between University of St Andrews, University of Bath, University of Leeds, Royal Holloway, University of London and the ISIS facility at the Rutherford Appleton Laboratory in Oxfordshire. The Consortium is funded by a Critical Mass grant from the EPSRC, with a total budget of £3.3 M, for 4 years of research which started on 1st March 2012. The Consortium also has associated members at University of Cambridge, University of Leiden and Paul Scherrer Institute. The aim of the project is to use advanced characterisation to understand and control novel ground states in hybrid superconducting-magnetic devices. The key novelty of the project is to use a range of techniques to image, in the broadest sense, signatures of these exotic ground states, in order to provide unique insight into these systems.
Collaborator Contribution The St Andrews part of the programme is focussed on the use of neutron techniques, the unique low energy muon (LEM) facility at the Paul Scherrer Institute (PSI), Switzerland and increasingly on advanced Synchrotron techniques. The Bath contribution to the programme focusses on the exploitation of novel scanning probe techniques to make spatially-resolved studies of magnetic structure and spin accumulation. The Condensed Matter Physics Group at the University of Leeds is primarily involved in sample growth and fabrication for the other experimental nodes in the collaboration. The ISIS neutron source is part of the Rutherford Appleton Laboratory in Harwell, Oxford. Their specialism is in large scale facility measurements: neutron, muon and x-ray. Royal Holloway, University of London, provides the theoretical support to the experimental activities in this consortium. TRHUL group has a strong background in superconducting spintronics and theoretical research in the field of superconductor/ferromagnet devices. The Laboratory for Micro- and Nanotechnology at PSI provide access to facilities for the advanced patterning of large area arrays of nanostrucutres and host a PDRA from the collaboration. The Laboratory for Muon Spin Spectroscopy and the Laboratory for Neutron Scattering at PSI provide additional expertise in muon and neutron techniques. The Leiden Institute of Physics provides ideas and samples for the work of the collaboration and also has STM facilities that the collaboration can make use of. The Department of Materials Science at the University of Cambridge collaborate and provide samples for some neutron and muons experiments and also discuss key results on similar systems at Consortium Meetings.
Impact Superconducting trilayer using low-energy muon-spin rotation M. G. Flokstra ,S. J. Ray, S. J. Lister, J. Aarts, H. Luetkens, T. Prokscha, A. Suter, E. Morenzoni, and S. L. Lee, Phys. Rev. B 89 054510 (2014). Muon-spin rotation measurements of the vortex state in Sr2RuO4: Type-1.5 super- conductivity, vortex clustering, and a crossover from a triangular to a square vortex lattice, S. J. Ray, A. S. Gibbs, S. J. Bending, P. J. Curran, E. Babaev, C. Baines, A. P. Mackenzie, and S. L. Lee Phys. Rev. B 89 094504 (2014). Search for spontaneous edge currents and vortex imaging in Sr2RuO4 mesostruc-tures Curran, P.J., Bending, S. J., Desoky, W., Gibbs, A. S., Lee, S. L. and Mackenzie, A. K., Phys. Rev. B 89 144504 (2014). Spin-polarized supercurrents for spintronics, M. Eschrig, Physics Today 64, pp 43-49 (2011), Feature Article. Spin polarization of (Ga,Mn)As measured by Andreev Spectroscopy: The role of spin-active scattering, S. Piano, R. Grein, C. J. Mellor, K. Vyborny, R. Campion, M. Wang, M. Eschrig, and B. L. Gallagher, Phys. Rev. B 83, 081305(R) (2011). Properties of Interfaces and Surfaces in Non-centrosymmetric Superconductors, M. Eschrig, C. Iniotakis, and Y. Tanaka, Book chapter in "Non-Centrosymmetric Superconductors", ed. E. Bauer and M. Sigrist, Springer Verlag: "Lecture Notes in Physics", Vol. 847, ISBN 978-3-642-24623-4, pp. 313-357 (2012). Tailoring the Fulde-Ferrell-Larkin-Ovchinnikov state, M. Eschrig, Annalen der Physik 524, A65 (2012); Expert Opinion. A Numerical Study of the Superconducting Proximity Effect in Topological Surface States, R. Grein, J. Michelsen, and M. Eschrig, J. Phys.: Conf. Ser. 391, 012149 (2012). Nonlocal thermoelectric effects and nonlocal Onsager relations in a three-terminal proximity coupled superconductor-ferromagnet device, P. Machon, M. Eschrig, and W. Belzig, Phys. Rev. Lett. 110, 047002 (2013). Inverse proximity effect and influence of disorder on triplet supercurrents in strongly spin-polarized ferromagnets, R. Grein, T. Lofwander, and M. Eschrig, Phys. Rev. B 88, 054502 (2013). Comment on "Unified Formalism of Andreev Reflection at a Ferromagnet -Superconductor Interface", M. Eschrig, A.A. Golubov, I.I. Mazin, B. Nadgorny, Y. Tanaka, O.T. Valls, and I. Zutic, accepted for publication in Phys. Rev. Lett. (2013). Andreev spectroscopy of CrO2 thin films on TiO2 and Al2O3, K. A. Yates, M. S. Anwar, J. Aarts, O. Conde, M. Eschrig, T. Lofwander, and L.F. Cohen, accepted for publication in EPL (2013).
Start Year 2012
 
Description SFM Consortium 
Organisation University of Bath
Country United Kingdom 
Sector Academic/University 
PI Contribution SFM Consortium is a research collaboration between University of St Andrews, University of Bath, University of Leeds, Royal Holloway, University of London and the ISIS facility at the Rutherford Appleton Laboratory in Oxfordshire. The Consortium is funded by a Critical Mass grant from the EPSRC, with a total budget of £3.3 M, for 4 years of research which started on 1st March 2012. The Consortium also has associated members at University of Cambridge, University of Leiden and Paul Scherrer Institute. The aim of the project is to use advanced characterisation to understand and control novel ground states in hybrid superconducting-magnetic devices. The key novelty of the project is to use a range of techniques to image, in the broadest sense, signatures of these exotic ground states, in order to provide unique insight into these systems.
Collaborator Contribution The St Andrews part of the programme is focussed on the use of neutron techniques, the unique low energy muon (LEM) facility at the Paul Scherrer Institute (PSI), Switzerland and increasingly on advanced Synchrotron techniques. The Bath contribution to the programme focusses on the exploitation of novel scanning probe techniques to make spatially-resolved studies of magnetic structure and spin accumulation. The Condensed Matter Physics Group at the University of Leeds is primarily involved in sample growth and fabrication for the other experimental nodes in the collaboration. The ISIS neutron source is part of the Rutherford Appleton Laboratory in Harwell, Oxford. Their specialism is in large scale facility measurements: neutron, muon and x-ray. Royal Holloway, University of London, provides the theoretical support to the experimental activities in this consortium. TRHUL group has a strong background in superconducting spintronics and theoretical research in the field of superconductor/ferromagnet devices. The Laboratory for Micro- and Nanotechnology at PSI provide access to facilities for the advanced patterning of large area arrays of nanostrucutres and host a PDRA from the collaboration. The Laboratory for Muon Spin Spectroscopy and the Laboratory for Neutron Scattering at PSI provide additional expertise in muon and neutron techniques. The Leiden Institute of Physics provides ideas and samples for the work of the collaboration and also has STM facilities that the collaboration can make use of. The Department of Materials Science at the University of Cambridge collaborate and provide samples for some neutron and muons experiments and also discuss key results on similar systems at Consortium Meetings.
Impact Superconducting trilayer using low-energy muon-spin rotation M. G. Flokstra ,S. J. Ray, S. J. Lister, J. Aarts, H. Luetkens, T. Prokscha, A. Suter, E. Morenzoni, and S. L. Lee, Phys. Rev. B 89 054510 (2014). Muon-spin rotation measurements of the vortex state in Sr2RuO4: Type-1.5 super- conductivity, vortex clustering, and a crossover from a triangular to a square vortex lattice, S. J. Ray, A. S. Gibbs, S. J. Bending, P. J. Curran, E. Babaev, C. Baines, A. P. Mackenzie, and S. L. Lee Phys. Rev. B 89 094504 (2014). Search for spontaneous edge currents and vortex imaging in Sr2RuO4 mesostruc-tures Curran, P.J., Bending, S. J., Desoky, W., Gibbs, A. S., Lee, S. L. and Mackenzie, A. K., Phys. Rev. B 89 144504 (2014). Spin-polarized supercurrents for spintronics, M. Eschrig, Physics Today 64, pp 43-49 (2011), Feature Article. Spin polarization of (Ga,Mn)As measured by Andreev Spectroscopy: The role of spin-active scattering, S. Piano, R. Grein, C. J. Mellor, K. Vyborny, R. Campion, M. Wang, M. Eschrig, and B. L. Gallagher, Phys. Rev. B 83, 081305(R) (2011). Properties of Interfaces and Surfaces in Non-centrosymmetric Superconductors, M. Eschrig, C. Iniotakis, and Y. Tanaka, Book chapter in "Non-Centrosymmetric Superconductors", ed. E. Bauer and M. Sigrist, Springer Verlag: "Lecture Notes in Physics", Vol. 847, ISBN 978-3-642-24623-4, pp. 313-357 (2012). Tailoring the Fulde-Ferrell-Larkin-Ovchinnikov state, M. Eschrig, Annalen der Physik 524, A65 (2012); Expert Opinion. A Numerical Study of the Superconducting Proximity Effect in Topological Surface States, R. Grein, J. Michelsen, and M. Eschrig, J. Phys.: Conf. Ser. 391, 012149 (2012). Nonlocal thermoelectric effects and nonlocal Onsager relations in a three-terminal proximity coupled superconductor-ferromagnet device, P. Machon, M. Eschrig, and W. Belzig, Phys. Rev. Lett. 110, 047002 (2013). Inverse proximity effect and influence of disorder on triplet supercurrents in strongly spin-polarized ferromagnets, R. Grein, T. Lofwander, and M. Eschrig, Phys. Rev. B 88, 054502 (2013). Comment on "Unified Formalism of Andreev Reflection at a Ferromagnet -Superconductor Interface", M. Eschrig, A.A. Golubov, I.I. Mazin, B. Nadgorny, Y. Tanaka, O.T. Valls, and I. Zutic, accepted for publication in Phys. Rev. Lett. (2013). Andreev spectroscopy of CrO2 thin films on TiO2 and Al2O3, K. A. Yates, M. S. Anwar, J. Aarts, O. Conde, M. Eschrig, T. Lofwander, and L.F. Cohen, accepted for publication in EPL (2013).
Start Year 2012
 
Description SFM Consortium 
Organisation University of Cambridge
Country United Kingdom 
Sector Academic/University 
PI Contribution SFM Consortium is a research collaboration between University of St Andrews, University of Bath, University of Leeds, Royal Holloway, University of London and the ISIS facility at the Rutherford Appleton Laboratory in Oxfordshire. The Consortium is funded by a Critical Mass grant from the EPSRC, with a total budget of £3.3 M, for 4 years of research which started on 1st March 2012. The Consortium also has associated members at University of Cambridge, University of Leiden and Paul Scherrer Institute. The aim of the project is to use advanced characterisation to understand and control novel ground states in hybrid superconducting-magnetic devices. The key novelty of the project is to use a range of techniques to image, in the broadest sense, signatures of these exotic ground states, in order to provide unique insight into these systems.
Collaborator Contribution The St Andrews part of the programme is focussed on the use of neutron techniques, the unique low energy muon (LEM) facility at the Paul Scherrer Institute (PSI), Switzerland and increasingly on advanced Synchrotron techniques. The Bath contribution to the programme focusses on the exploitation of novel scanning probe techniques to make spatially-resolved studies of magnetic structure and spin accumulation. The Condensed Matter Physics Group at the University of Leeds is primarily involved in sample growth and fabrication for the other experimental nodes in the collaboration. The ISIS neutron source is part of the Rutherford Appleton Laboratory in Harwell, Oxford. Their specialism is in large scale facility measurements: neutron, muon and x-ray. Royal Holloway, University of London, provides the theoretical support to the experimental activities in this consortium. TRHUL group has a strong background in superconducting spintronics and theoretical research in the field of superconductor/ferromagnet devices. The Laboratory for Micro- and Nanotechnology at PSI provide access to facilities for the advanced patterning of large area arrays of nanostrucutres and host a PDRA from the collaboration. The Laboratory for Muon Spin Spectroscopy and the Laboratory for Neutron Scattering at PSI provide additional expertise in muon and neutron techniques. The Leiden Institute of Physics provides ideas and samples for the work of the collaboration and also has STM facilities that the collaboration can make use of. The Department of Materials Science at the University of Cambridge collaborate and provide samples for some neutron and muons experiments and also discuss key results on similar systems at Consortium Meetings.
Impact Superconducting trilayer using low-energy muon-spin rotation M. G. Flokstra ,S. J. Ray, S. J. Lister, J. Aarts, H. Luetkens, T. Prokscha, A. Suter, E. Morenzoni, and S. L. Lee, Phys. Rev. B 89 054510 (2014). Muon-spin rotation measurements of the vortex state in Sr2RuO4: Type-1.5 super- conductivity, vortex clustering, and a crossover from a triangular to a square vortex lattice, S. J. Ray, A. S. Gibbs, S. J. Bending, P. J. Curran, E. Babaev, C. Baines, A. P. Mackenzie, and S. L. Lee Phys. Rev. B 89 094504 (2014). Search for spontaneous edge currents and vortex imaging in Sr2RuO4 mesostruc-tures Curran, P.J., Bending, S. J., Desoky, W., Gibbs, A. S., Lee, S. L. and Mackenzie, A. K., Phys. Rev. B 89 144504 (2014). Spin-polarized supercurrents for spintronics, M. Eschrig, Physics Today 64, pp 43-49 (2011), Feature Article. Spin polarization of (Ga,Mn)As measured by Andreev Spectroscopy: The role of spin-active scattering, S. Piano, R. Grein, C. J. Mellor, K. Vyborny, R. Campion, M. Wang, M. Eschrig, and B. L. Gallagher, Phys. Rev. B 83, 081305(R) (2011). Properties of Interfaces and Surfaces in Non-centrosymmetric Superconductors, M. Eschrig, C. Iniotakis, and Y. Tanaka, Book chapter in "Non-Centrosymmetric Superconductors", ed. E. Bauer and M. Sigrist, Springer Verlag: "Lecture Notes in Physics", Vol. 847, ISBN 978-3-642-24623-4, pp. 313-357 (2012). Tailoring the Fulde-Ferrell-Larkin-Ovchinnikov state, M. Eschrig, Annalen der Physik 524, A65 (2012); Expert Opinion. A Numerical Study of the Superconducting Proximity Effect in Topological Surface States, R. Grein, J. Michelsen, and M. Eschrig, J. Phys.: Conf. Ser. 391, 012149 (2012). Nonlocal thermoelectric effects and nonlocal Onsager relations in a three-terminal proximity coupled superconductor-ferromagnet device, P. Machon, M. Eschrig, and W. Belzig, Phys. Rev. Lett. 110, 047002 (2013). Inverse proximity effect and influence of disorder on triplet supercurrents in strongly spin-polarized ferromagnets, R. Grein, T. Lofwander, and M. Eschrig, Phys. Rev. B 88, 054502 (2013). Comment on "Unified Formalism of Andreev Reflection at a Ferromagnet -Superconductor Interface", M. Eschrig, A.A. Golubov, I.I. Mazin, B. Nadgorny, Y. Tanaka, O.T. Valls, and I. Zutic, accepted for publication in Phys. Rev. Lett. (2013). Andreev spectroscopy of CrO2 thin films on TiO2 and Al2O3, K. A. Yates, M. S. Anwar, J. Aarts, O. Conde, M. Eschrig, T. Lofwander, and L.F. Cohen, accepted for publication in EPL (2013).
Start Year 2012
 
Description SFM Consortium 
Organisation University of Leeds
Country United Kingdom 
Sector Academic/University 
PI Contribution SFM Consortium is a research collaboration between University of St Andrews, University of Bath, University of Leeds, Royal Holloway, University of London and the ISIS facility at the Rutherford Appleton Laboratory in Oxfordshire. The Consortium is funded by a Critical Mass grant from the EPSRC, with a total budget of £3.3 M, for 4 years of research which started on 1st March 2012. The Consortium also has associated members at University of Cambridge, University of Leiden and Paul Scherrer Institute. The aim of the project is to use advanced characterisation to understand and control novel ground states in hybrid superconducting-magnetic devices. The key novelty of the project is to use a range of techniques to image, in the broadest sense, signatures of these exotic ground states, in order to provide unique insight into these systems.
Collaborator Contribution The St Andrews part of the programme is focussed on the use of neutron techniques, the unique low energy muon (LEM) facility at the Paul Scherrer Institute (PSI), Switzerland and increasingly on advanced Synchrotron techniques. The Bath contribution to the programme focusses on the exploitation of novel scanning probe techniques to make spatially-resolved studies of magnetic structure and spin accumulation. The Condensed Matter Physics Group at the University of Leeds is primarily involved in sample growth and fabrication for the other experimental nodes in the collaboration. The ISIS neutron source is part of the Rutherford Appleton Laboratory in Harwell, Oxford. Their specialism is in large scale facility measurements: neutron, muon and x-ray. Royal Holloway, University of London, provides the theoretical support to the experimental activities in this consortium. TRHUL group has a strong background in superconducting spintronics and theoretical research in the field of superconductor/ferromagnet devices. The Laboratory for Micro- and Nanotechnology at PSI provide access to facilities for the advanced patterning of large area arrays of nanostrucutres and host a PDRA from the collaboration. The Laboratory for Muon Spin Spectroscopy and the Laboratory for Neutron Scattering at PSI provide additional expertise in muon and neutron techniques. The Leiden Institute of Physics provides ideas and samples for the work of the collaboration and also has STM facilities that the collaboration can make use of. The Department of Materials Science at the University of Cambridge collaborate and provide samples for some neutron and muons experiments and also discuss key results on similar systems at Consortium Meetings.
Impact Superconducting trilayer using low-energy muon-spin rotation M. G. Flokstra ,S. J. Ray, S. J. Lister, J. Aarts, H. Luetkens, T. Prokscha, A. Suter, E. Morenzoni, and S. L. Lee, Phys. Rev. B 89 054510 (2014). Muon-spin rotation measurements of the vortex state in Sr2RuO4: Type-1.5 super- conductivity, vortex clustering, and a crossover from a triangular to a square vortex lattice, S. J. Ray, A. S. Gibbs, S. J. Bending, P. J. Curran, E. Babaev, C. Baines, A. P. Mackenzie, and S. L. Lee Phys. Rev. B 89 094504 (2014). Search for spontaneous edge currents and vortex imaging in Sr2RuO4 mesostruc-tures Curran, P.J., Bending, S. J., Desoky, W., Gibbs, A. S., Lee, S. L. and Mackenzie, A. K., Phys. Rev. B 89 144504 (2014). Spin-polarized supercurrents for spintronics, M. Eschrig, Physics Today 64, pp 43-49 (2011), Feature Article. Spin polarization of (Ga,Mn)As measured by Andreev Spectroscopy: The role of spin-active scattering, S. Piano, R. Grein, C. J. Mellor, K. Vyborny, R. Campion, M. Wang, M. Eschrig, and B. L. Gallagher, Phys. Rev. B 83, 081305(R) (2011). Properties of Interfaces and Surfaces in Non-centrosymmetric Superconductors, M. Eschrig, C. Iniotakis, and Y. Tanaka, Book chapter in "Non-Centrosymmetric Superconductors", ed. E. Bauer and M. Sigrist, Springer Verlag: "Lecture Notes in Physics", Vol. 847, ISBN 978-3-642-24623-4, pp. 313-357 (2012). Tailoring the Fulde-Ferrell-Larkin-Ovchinnikov state, M. Eschrig, Annalen der Physik 524, A65 (2012); Expert Opinion. A Numerical Study of the Superconducting Proximity Effect in Topological Surface States, R. Grein, J. Michelsen, and M. Eschrig, J. Phys.: Conf. Ser. 391, 012149 (2012). Nonlocal thermoelectric effects and nonlocal Onsager relations in a three-terminal proximity coupled superconductor-ferromagnet device, P. Machon, M. Eschrig, and W. Belzig, Phys. Rev. Lett. 110, 047002 (2013). Inverse proximity effect and influence of disorder on triplet supercurrents in strongly spin-polarized ferromagnets, R. Grein, T. Lofwander, and M. Eschrig, Phys. Rev. B 88, 054502 (2013). Comment on "Unified Formalism of Andreev Reflection at a Ferromagnet -Superconductor Interface", M. Eschrig, A.A. Golubov, I.I. Mazin, B. Nadgorny, Y. Tanaka, O.T. Valls, and I. Zutic, accepted for publication in Phys. Rev. Lett. (2013). Andreev spectroscopy of CrO2 thin films on TiO2 and Al2O3, K. A. Yates, M. S. Anwar, J. Aarts, O. Conde, M. Eschrig, T. Lofwander, and L.F. Cohen, accepted for publication in EPL (2013).
Start Year 2012
 
Description Press interviews for Induced Magnetism in Gold 
Form Of Engagement Activity A press release, press conference or response to a media enquiry/interview
Part Of Official Scheme? No
Geographic Reach International
Primary Audience Media (as a channel to the public)
Results and Impact A number interviews by members of the collaboration (principally Machiel Flokstra, St Andrews) and a number press released led to many reports of the work in the press.

http://www.thecourier.co.uk/news/local/fife/kings-of-spin-scientists-have-the-golden-touch-1.903787
http://www.thenational.scot/news/research-on-magnetising-gold-could-improve-computers-say-st-andrews-university-scientists.8441
http://www.scotsman.com/news/sci-tech/scientist-discovery-could-make-computers-faster-1-3909167
http://physicsworld.com/cws/article/news/2015/oct/05/superconductor-induces-magnetism-in-non-magnetic-gold
http://www.westerndailypress.co.uk/Scientists-managed-magnetise-gold-time-change/story-27930012-detail/story.html
http://www.itv.com/news/west/2015-10-06/scientists-discover-ground-breaking-magnetic-capabilities-of-gold/

There was also a very large take up bty popular science sites and trade journals, including an interview with Superconductor Week. e.g.
http://aerospace.firetrench.com/2015/10/magnetised-gold-heralds-new-generation-of-electronics/
http://www.electronicsweekly.com/news/design/university-electronics/turning-gold-into-spintronics-2015-10/
Year(s) Of Engagement Activity 2015
URL http://www.st-andrews.ac.uk/physics/news/Panda_news/sll_spintronicsnature_06_10_15.php
 
Description Press release for artificial spin ice 
Form Of Engagement Activity A press release, press conference or response to a media enquiry/interview
Part Of Official Scheme? No
Geographic Reach International
Primary Audience Media (as a channel to the public)
Results and Impact Press release from collaboration with Paul Scherrer Insitute on artifical spin ice led to signficant media attention on popular science websites and fora e.g. see

http://phys.org/news/2015-09-tiny-magnets-mimic-steam-ice.html
Year(s) Of Engagement Activity 2015
URL http://www.st-andrews.ac.uk/physics/news/Panda_news/sll_spintronicsnature_06_10_15.php