Pressure-dependent magnetism of the Kitaev candidate Li2RhO3
Abstract We use magnetization measurements under pressure along with ab initio and cluster many-body calculations to investigate magnetism of the Kitaev candidate Li2RhO3. Hydrostatic compression leads to a decrease in the magnitude of the nearest-neighbor ferromagnetic Kitaev coupling K 1 and the c...
Saved in:
| Main Authors: | , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Nature Portfolio
2025-01-01
|
| Series: | npj Quantum Materials |
| Online Access: | https://doi.org/10.1038/s41535-025-00730-1 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1832586042050347008 |
|---|---|
| author | Bin Shen Efrain Insuasti Pazmino Ramesh Dhakal Friedrich Freund Philipp Gegenwart Stephen M. Winter Alexander A. Tsirlin |
| author_facet | Bin Shen Efrain Insuasti Pazmino Ramesh Dhakal Friedrich Freund Philipp Gegenwart Stephen M. Winter Alexander A. Tsirlin |
| author_sort | Bin Shen |
| collection | DOAJ |
| description | Abstract We use magnetization measurements under pressure along with ab initio and cluster many-body calculations to investigate magnetism of the Kitaev candidate Li2RhO3. Hydrostatic compression leads to a decrease in the magnitude of the nearest-neighbor ferromagnetic Kitaev coupling K 1 and the corresponding increase in the off-diagonal anisotropy Γ1, whereas the experimental Curie-Weiss temperature changes from negative to positive with the slope of +40 K/GPa. On the other hand, spin freezing persists up to at least 3.46 GPa with the almost constant freezing temperature of 5 K that does not follow the large changes in the exchange couplings and indicates the likely extrinsic origin of spin freezing. Magnetic frustration in Li2RhO3 is mainly related to the interplay between ferromagnetic K 1 and antiferromagnetic Γ1, along with the weakness of the third-neighbor coupling J 3 that would otherwise stabilize zigzag order. The small J 3 distinguishes Li2RhO3 from other Kitaev candidates. |
| format | Article |
| id | doaj-art-2bf6514a482b4637ae31bde4e9544779 |
| institution | Kabale University |
| issn | 2397-4648 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | npj Quantum Materials |
| spelling | doaj-art-2bf6514a482b4637ae31bde4e95447792025-01-26T12:13:36ZengNature Portfolionpj Quantum Materials2397-46482025-01-011011710.1038/s41535-025-00730-1Pressure-dependent magnetism of the Kitaev candidate Li2RhO3Bin Shen0Efrain Insuasti Pazmino1Ramesh Dhakal2Friedrich Freund3Philipp Gegenwart4Stephen M. Winter5Alexander A. Tsirlin6Experimental Physics VI, Center for Electronic Correlations and Magnetism, University of AugsburgFelix Bloch Institute for Solid-State Physics, University of LeipzigDepartment of Physics and Center for Functional Materials, Wake Forest UniversityExperimental Physics VI, Center for Electronic Correlations and Magnetism, University of AugsburgExperimental Physics VI, Center for Electronic Correlations and Magnetism, University of AugsburgDepartment of Physics and Center for Functional Materials, Wake Forest UniversityFelix Bloch Institute for Solid-State Physics, University of LeipzigAbstract We use magnetization measurements under pressure along with ab initio and cluster many-body calculations to investigate magnetism of the Kitaev candidate Li2RhO3. Hydrostatic compression leads to a decrease in the magnitude of the nearest-neighbor ferromagnetic Kitaev coupling K 1 and the corresponding increase in the off-diagonal anisotropy Γ1, whereas the experimental Curie-Weiss temperature changes from negative to positive with the slope of +40 K/GPa. On the other hand, spin freezing persists up to at least 3.46 GPa with the almost constant freezing temperature of 5 K that does not follow the large changes in the exchange couplings and indicates the likely extrinsic origin of spin freezing. Magnetic frustration in Li2RhO3 is mainly related to the interplay between ferromagnetic K 1 and antiferromagnetic Γ1, along with the weakness of the third-neighbor coupling J 3 that would otherwise stabilize zigzag order. The small J 3 distinguishes Li2RhO3 from other Kitaev candidates.https://doi.org/10.1038/s41535-025-00730-1 |
| spellingShingle | Bin Shen Efrain Insuasti Pazmino Ramesh Dhakal Friedrich Freund Philipp Gegenwart Stephen M. Winter Alexander A. Tsirlin Pressure-dependent magnetism of the Kitaev candidate Li2RhO3 npj Quantum Materials |
| title | Pressure-dependent magnetism of the Kitaev candidate Li2RhO3 |
| title_full | Pressure-dependent magnetism of the Kitaev candidate Li2RhO3 |
| title_fullStr | Pressure-dependent magnetism of the Kitaev candidate Li2RhO3 |
| title_full_unstemmed | Pressure-dependent magnetism of the Kitaev candidate Li2RhO3 |
| title_short | Pressure-dependent magnetism of the Kitaev candidate Li2RhO3 |
| title_sort | pressure dependent magnetism of the kitaev candidate li2rho3 |
| url | https://doi.org/10.1038/s41535-025-00730-1 |
| work_keys_str_mv | AT binshen pressuredependentmagnetismofthekitaevcandidateli2rho3 AT efraininsuastipazmino pressuredependentmagnetismofthekitaevcandidateli2rho3 AT rameshdhakal pressuredependentmagnetismofthekitaevcandidateli2rho3 AT friedrichfreund pressuredependentmagnetismofthekitaevcandidateli2rho3 AT philippgegenwart pressuredependentmagnetismofthekitaevcandidateli2rho3 AT stephenmwinter pressuredependentmagnetismofthekitaevcandidateli2rho3 AT alexanderatsirlin pressuredependentmagnetismofthekitaevcandidateli2rho3 |