The control of electrons through patterning of superstructures
Lead Research Organisation:
University of Oxford
Department Name: Oxford Physics
Abstract
Abstracts are not currently available in GtR for all funded research. This is normally because the abstract was not required at the time of proposal submission, but may be because it included sensitive information such as personal details.
Publications
Babkevich P
(2012)
Erratum: Electric field control of chiral magnetic domains in the high-temperature multiferroic CuO [Phys. Rev. B 85 , 134428 (2012)]
in Physical Review B
Rotter M
(2012)
Dynamical matrix diagonalization for the calculation of dispersive excitations
in Journal of Physics: Condensed Matter
Babkevich P
(2012)
Electric field control of chiral magnetic domains in the high-temperature multiferroic CuO
in Physical Review B
Johnson S
(2012)
Femtosecond Dynamics of the Collinear-to-Spiral Antiferromagnetic Phase Transition in CuO
in Physical Review Letters
Beale T
(2012)
Advances in the understanding of multiferroics through soft X-ray diffraction
in The European Physical Journal Special Topics
Johnson R
(2012)
X-ray diffraction study of the temperature-induced structural phase transitions in SmVO 3
in Physical Review B
Rotter M
(2013)
Corrigendum: Dynamical matrix diagonalization for the calculation of dispersive excitations
in Journal of Physics: Condensed Matter
Liu X
(2013)
Strongly momentum-dependent screening dynamics in La 0.5 Sr 1.5 MnO 4 observed with resonant inelastic x-ray scattering
in Physical Review B
Gaw S
(2013)
Hour-glass magnetic spectrum arising from a striped cluster spin-glass ground state in La 1.75 Sr 0.25 CoO 4
in Physical Review B
Princep A
(2013)
Crystal-field states of Pr 3 + in the candidate quantum spin ice Pr 2 Sn 2 O 7
in Physical Review B
Voneshen DJ
(2013)
Suppression of thermal conductivity by rattling modes in thermoelectric sodium cobaltate.
in Nature materials
Walker H
(2013)
Circularly polarized x-ray scattering investigation of spin-lattice coupling in TbMnO 3 in crossed electric and magnetic fields
in Physical Review B
Lancaster T
(2014)
Stripe disorder and dynamics in the hole-doped antiferromagnetic insulator La 5 / 3 Sr 1 / 3 CoO 4
in Physical Review B
Jones SP
(2014)
High-temperature electromagnons in the magnetically induced multiferroic cupric oxide driven by intersublattice exchange.
in Nature communications
Staub U
(2014)
Publisher's Note: Persistence of magnetic order in a highly excited Cu 2 + state in CuO [Phys. Rev. B 89 , 220401(R) (2014)]
in Physical Review B
Staub U
(2014)
Persistence of magnetic order in a highly excited Cu 2 + state in CuO
in Physical Review B
Izquierdo M
(2014)
Laser-induced charge-disproportionated metallic state in LaCoO 3
in Physical Review B
Phokha S
(2014)
Ferromagnetic induced in Cr-doped CeO2 particles
in Microelectronic Engineering
Rotter M
(2014)
Mechanism of spin crossover in LaCoO3 resolved by shape magnetostriction in pulsed magnetic fields.
in Scientific reports
Bovo L
(2014)
Restoration of the third law in spin ice thin films.
in Nature communications
Porter D
(2014)
Divacancy superstructures in thermoelectric calcium-doped sodium cobaltate
in Physical Review B
Princep A
(2015)
Crystal field states of Tb 3 + in the pyrochlore spin liquid Tb 2 Ti 2 O 7 from neutron spectroscopy
in Physical Review B
Yi W
(2015)
Sc2NiMnO6: A Double-Perovskite with a Magnetodielectric Response Driven by Multiple Magnetic Orders.
in Inorganic chemistry
Porter D
(2015)
Two-dimensional Cs-vacancy superstructure in iron-based superconductor Cs 0.8 Fe 1.6 Se 2
in Physical Review B
Description | I have investigated several topical materials in which different kinds of superstructures play a key role in determining their physical behaviour. The main findings were: 1. Detection of charge stripes in layered cobaltates, which provides and understanding of their magnetic spectrum and has implications for the physics of the copper oxide superconductors. 2. Discovery of magnetic and structural superstructures in an Fe-based superconductor (CsFe2Se2) and their effect on physical properties. 3. Uncovered importance of divacancy superstructures and rattling modes in the thermoelectric properties of NaxCoO2. 4. Detection of electromagnon modes in the multiferroic phase of copper oxide. 5. Prepared substrates for the epitaxial thin film growth of spin ice materials. + many other detailed results. |
Exploitation Route | Further experiments and theoretical investigations |
Sectors | Other |
URL | http://xray.physics.ox.ac.uk/Boothroyd/ |
Description | The findings have been used by other researchers in the field, including work on Na ion batteries that follows from the study of Na ion ordering in sodium cobalt oxide |
First Year Of Impact | 2018 |
Sector | Energy,Other |
Description | A state-of-the-art optical floating-zone furnace for crystal growth at high pressures |
Amount | £893,916 (GBP) |
Funding ID | EP/R024278/1 |
Organisation | Engineering and Physical Sciences Research Council (EPSRC) |
Sector | Public |
Country | United Kingdom |
Start | 03/2018 |
End | 09/2020 |
Description | RHUL |
Organisation | Royal Holloway, University of London |
Department | Department of Earth Sciences |
Country | United Kingdom |
Sector | Academic/University |
PI Contribution | The project was a collaboration between my group and the group of Prof Jon Goff at RHUL. Our contribution was to prepare single crystal samples, and characterize them by bulk techniques and neutron scattering. |
Collaborator Contribution | Prof Goff's group performed neutron and synchrotron x-ray scattering measurements and carried out theoretical calculations. |
Impact | Main output is publications |
Start Year | 2012 |
Title | SPECTRE |
Description | SPECTRE is a programme to calculate the single-ion spectroscopic properties of rare-earth ions in crystals |
Type Of Technology | Software |
Year Produced | 2015 |
Impact | The software has been used in three publications by other groups |
URL | https://groups.physics.ox.ac.uk/Boothroyd/software.htm |