New correlated electronic states arising from strong spin-orbit coupling

Lead Research Organisation: UNIVERSITY COLLEGE LONDON

Department Name: London Centre for Nanotechnology

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.

Funded Value:

£531,779

Funded Period:

Nov 16 - Jan 20

Funder:

EPSRC

Project Status:

Closed

Project Category:

Research Grant

Project Reference:

EP/N034694/1

Principal Investigator:

Desmond McMorrow

Research Subject:

Supercond, magn. &quant.fluids (100%)

Research Topic:

Condensed Matter Physics (50%)

Magnetism/Magnetic Phenomena (50%)

Organisations

UNIVERSITY COLLEGE LONDON (Lead Research Organisation)

People	ORCID iD
Desmond McMorrow (Principal Investigator)
Robin Perry (Co-Investigator)

Publications

Author Name Title Publication Date Published

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Donnerer C (2016) All-in-all-Out Magnetic Order and Propagating Spin Waves in Sm_{2}Ir_{2}O_{7}. in Physical review letters

Dean MP (2016) Ultrafast energy- and momentum-resolved dynamics of magnetic correlations in the photo-doped Mott insulator Sr2IrO4. in Nature materials

Calder S (2016) Spin-orbit-driven magnetic structure and excitation in the 5d pyrochlore Cd2Os2O7. in Nature communications

Ward S (2017) Bound States and Field-Polarized Haldane Modes in a Quantum Spin Ladder. in Physical review letters

Veiga L (2017) Pressure tuning of bond-directional exchange interactions and magnetic frustration in the hyperhoneycomb iridate $\beta$-Li$_{2}$IrO$_{3}$

Calder S (2017) Strongly gapped spin-wave excitation in the insulating phase of NaOsO 3 in Physical Review B

Pincini D (2017) Anisotropic exchange and spin-wave damping in pure and electron-doped Sr$_2$IrO$_4$

Pincini D (2017) Anisotropic exchange and spin-wave damping in pure and electron-doped Sr 2 IrO 4 in Physical Review B

Veiga L (2017) Pressure tuning of bond-directional exchange interactions and magnetic frustration in the hyperhoneycomb iridate ß - Li 2 IrO 3 in Physical Review B

Zayed M (2017) 4-spin plaquette singlet state in the Shastry-Sutherland compound SrCu2(BO3)2 in Nature Physics

Lu X (2017) Dispersive Magnetic and Electronic Excitations in Iridate Perovskites Probed with Oxygen $K$-Edge Resonant Inelastic X-ray Scattering

Riccò S (2018) In situ strain tuning of the metal-insulator-transition of Ca2RuO4 in angle-resolved photoemission experiments. in Nature communications

Lu X (2018) Dispersive magnetic and electronic excitations in iridate perovskites probed by oxygen K -edge resonant inelastic x-ray scattering in Physical Review B

Donnerer C (2018) High-pressure insulator-to-metal transition in Sr 3 Ir 2 O 7 studied by x-ray absorption spectroscopy in Physical Review B

Pincini D (2018) Persistence of antiferromagnetic order upon La substitution in the $4d^4$ Mott insulator Ca$_2$RuO$_4$

Davies N (2018) Evidence for $J_{\rm eff} = 0$ ground state and defect-induced spin glass behaviour in the pyrochlore osmate Y$_{2}$Os$_{2}$O$_{7}$

Pincini D (2018) Persistence of antiferromagnetic order upon La substitution in the 4 d 4 Mott insulator Ca 2 RuO 4 in Physical Review B

Vale J (2018) Crossover from itinerant to localized magnetic excitations through the metal-insulator transition in NaOsO 3 in Physical Review B

Lu, Xingye (2018) Dispersive magnetic and electronic excitations in iridate perovskites probed by oxygen K-edge resonant inelastic x-ray scattering

Vale J (2018) Evolution of the Magnetic Excitations in NaOsO 3 through its Metal-Insulator Transition in Physical Review Letters

Riccò S (2018) In-situ strain-tuning of the metal-insulator-transition of Ca$_{2}$RuO$_{4}$ in angle-resolved photoemission experiments

Perry R (2018) Crystal structure and crystal growth of the polar ferrimagnet CaBaFe 4 O 7 in Physical Review Materials

Alexeev P (2018) Nuclear resonant scattering from 193Ir as a probe of the electronic and magnetic properties of iridates

Vale J (2018) Critical fluctuations in the spin-orbit Mott insulator Sr$_3$Ir$_2$O$_7$

Vale J (2018) Putative magnetic quantum criticality in ( Sr 1 - x La x ) 3 Ir 2 O 7 in Physical Review B

Riccò S (2018) In situ strain tuning of the metal-insulator-transition of $Ca_{2}RuO_{4}$ in angle-resolved photoemission experiments

Veiga L (2019) Pressure-induced structural dimerization in the hyperhoneycomb iridate $ß$-Li$_2$IrO$_3$ at low temperatures

Veiga L (2019) Pressure-induced structural dimerization in the hyperhoneycomb iridate ß - Li 2 IrO 3 at low temperatures in Physical Review B

Alexeev P (2019) Nuclear resonant scattering from $^{193}Ir$ as a probe of the electronic and magnetic properties of iridates

Rossi M (2019) Resonant inelastic x-ray scattering of magnetic excitations under pressure

Dashwood C (2019) Momentum-resolved lattice dynamics of parent and electron-doped Sr 2 IrO 4 in Physical Review B

Veiga L (2019) Pressure-induced structural dimerization in the hyperhoneycomb iridate $ß-Li_{2}IrO_{3}$ at low temperatures

Alexeev P (2019) Nuclear resonant scattering from 193Ir as a probe of the electronic and magnetic properties of iridates in Scientific Reports

Veiga L (2019) Possible quantum fluctuations in the vicinity of the quantum critical point of $\mathbf{(Sr, Ca)_3Ir_4Sn_{13}}$ revealed by high-energy X-ray diffraction study

Pincini D (2019) Tuning of the Ru 4 + ground-state orbital population in the 4 d 4 Mott insulator Ca 2 RuO 4 achieved by La doping in Physical Review B

Donnerer C (2019) Selective probing of magnetic order on Tb and Ir sites in stuffed Tb2Ir2O7 using resonant x-ray scattering. in Journal of physics. Condensed matter : an Institute of Physics journal

Carneiro F (2019) Unveiling charge density wave quantum phase transitions by x-ray diffraction

Vale J (2019) Critical fluctuations in the spin-orbit Mott insulator Sr$_3$Ir$_2$O$_7$

Rossi M (2019) Resonant inelastic X-ray scattering of magnetic excitations under pressure. in Journal of synchrotron radiation

Haskel D (2019) Possible quantum paramagnetism in compressed Sr$_2$IrO$_4$

Davies N (2019) Evidence for a J eff = 0 ground state and defect-induced spin glass behavior in the pyrochlore osmate Y 2 Os 2 O 7 in Physical Review B

Jacobsen H (2019) Strong quantum fluctuations due to competition between magnetic phases in a pyrochlore iridate

Vale JG (2019) Critical fluctuations in the spin-orbit Mott insulator Sr3Ir2O7. in Journal of physics. Condensed matter : an Institute of Physics journal

Jacobsen H (2020) Magnetically induced metal-insulator transition in Pb2CaOsO6

Vale J (2020) Spin and orbital excitations through the metal-to-insulator transition in Cd 2 Os 2 O 7 probed with high-resolution resonant inelastic x-ray scattering in Physical Review B

Veiga L (2020) Correlated electron metal properties of the honeycomb ruthenate $Na_{2}RuO_{3}$

Jacobsen H (2020) Magnetically induced metal-insulator transition in Pb 2 CaOsO 6 in Physical Review B

Dashwood C (2020) Spontaneous cycloidal order mediating a spin-reorientation transition in a polar metal in Physical Review B

Veiga L (2020) Correlated electron metal properties of the honeycomb ruthenate Na$_2$RuO$_3$

Carneiro F (2020) Unveiling charge density wave quantum phase transitions by x-ray diffraction in Physical Review B

Key Findings
Research Databases and Models


Description	The key findings are well documented in the numerous publications which have arisen from the award, all in internationally leading journals. The overarching theme is that the combination of strong spin-orbit coupling and electron correlations can lead to novel electronic and magnetic states of matter. Revealing and understanding these states of matter using experimental techniques based on the exploitation and development of facilities for neutron and X-ray scattering has been a key objective of the grant. For example, Ca2RuO4 has attracted considerable attention in recent years as the Mott-insulating analogue of the unconventional superconductor Sr2RuO4. Using a combination of X-ray and neutron scattering we have revealed how the magnetic and electronic structures evolve as a function of doping, thus allowing us to understand the origin of the metal insulating transition it displays. This work alone led to three papers - two in PRB and one in Nature Communications.
Exploitation Route	Our work arising from this funding is beginning to attract considerable interest in the academic community, facilitating progress on the development and exploitation of novel electronic materials.
Sectors	Other


Title	Data for "Spontaneous cycloidal order mediating a spin-reorientation transition in a polar metal"
Description	Data for the manuscript "Spontaneous cycloidal order mediating a spin-reorientation transition in a polar metal" by C. D. Dashwood, L. S. I. Veiga, Q. Faure, J. G. Vale, D. G. Porter, S. P. Collins, P. Manuel, D. D. Khalyavin, F. Orlandi, R. S. Perry, R. D. Johnson, and D. F. McMorrow, Phys. Rev. B 102, 180410(R) (2020).All the data is provided in text files, each containing a single header line followed by the data. All temperatures are in Kelvin, magnetic field strengths in Tesla, angles in degrees, and resistances in Ohms.The parent folder contains the in-plane resistivity and powder XRD data.Neutron scattering data is contained in the "Neutron" folder, with each file labelled by the magnetic field strength and Bragg peak (commensurate peak "001" or incommensurate satellite peak "d01").Resonant x-ray scattering data is contained in the "X-ray" folder, under four subfolders for the azimuthal dependences ("Azi_deps"), energy dependences ("E_deps"), reciprocal space scans ("H_scans") and theta scans ("Th_scans"). Files in all the subfolders are labelled by the temperature and Bragg peak (commensurate peak "005" or incommensurate satellite peak "d05"), followed by further labels for the x-ray polarisation ("sig-sig" or "sig-pi"), azimuthal angle ("psi90" or "psi180") and absorption edge ("L2" or "L3"). The azimuthal dependences folder also contains a file "Parameters" with the fitted values of Ma and Mb (defined in the manuscript) and their errors.
Type Of Material	Database/Collection of data
Year Produced	2021
Provided To Others?	Yes
URL	https://rdr.ucl.ac.uk/articles/dataset/Data_for_Spontaneous_cycloidal_order_mediating_a_spin-reorien...


Title	Strain control of a bandwidth-driven spin reorientation in Ca₃Ru₂O₇
Description	Here, we provide data for the manuscript "Strain control of a bandwidth-driven spin reorientation in Ca3Ru2O7" by C. D. Dashwood, A. H. Walker, M. P. Kwasigroch, L. S. I. Veiga, Q. Faure, J. G. Vale, D. G. Porter, P. Manuel, D. D. Khalyavin, F. Orlandi, C. V. Colin, O. Fabelo, F. Kruger, R. S. Perry, R. D. Johnson, A. G. Green, and D. F. McMorrow.
Type Of Material	Database/Collection of data
Year Produced	2023
Provided To Others?	Yes
URL	https://springernature.figshare.com/articles/dataset/Strain_control_of_a_bandwidth-driven_spin_reori...


Title	Strain control of a bandwidth-driven spin reorientation in Ca₃Ru₂O₇
Description	Here, we provide data for the manuscript "Strain control of a bandwidth-driven spin reorientation in Ca3Ru2O7" by C. D. Dashwood, A. H. Walker, M. P. Kwasigroch, L. S. I. Veiga, Q. Faure, J. G. Vale, D. G. Porter, P. Manuel, D. D. Khalyavin, F. Orlandi, C. V. Colin, O. Fabelo, F. Kruger, R. S. Perry, R. D. Johnson, A. G. Green, and D. F. McMorrow.
Type Of Material	Database/Collection of data
Year Produced	2023
Provided To Others?	Yes
URL	https://springernature.figshare.com/articles/dataset/Strain_control_of_a_bandwidth-driven_spin_reori...

Abstract

Organisations

People

ORCID iD

Publications