Robust quantum spin liquid state in the presence of giant magnetic isotope effect in D3LiIr2O6
Abstract The deuterium isotope effect on the honeycomb iridate H3LiIr2O6, a quantum spin-orbit-entangled liquid, was examined by synthesizing D3LiIr2O6. The structural refinements indicate the different character of the interlayer OH and OD bonds, which results in a giant isotope effect on the magne...
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2025-01-01
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| Series: | npj Quantum Materials |
| Online Access: | https://doi.org/10.1038/s41535-025-00727-w |
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| author | T. Takayama A. S. Gibbs K. Kitagawa Y. Matsumoto K. Ishii A. Kato R. Takano S. Bette R. Dinnebier H. Takagi |
| author_facet | T. Takayama A. S. Gibbs K. Kitagawa Y. Matsumoto K. Ishii A. Kato R. Takano S. Bette R. Dinnebier H. Takagi |
| author_sort | T. Takayama |
| collection | DOAJ |
| description | Abstract The deuterium isotope effect on the honeycomb iridate H3LiIr2O6, a quantum spin-orbit-entangled liquid, was examined by synthesizing D3LiIr2O6. The structural refinements indicate the different character of the interlayer OH and OD bonds, which results in a giant isotope effect on the magnetic interactions; the antiferromagnetic Curie-Weiss temperature |θ CW| of D3LiIr2O6 increases to ~ 170 K from ~ 100 K of H3LiIr2O6. Nevertheless, the quantum liquid state is robust against the deuterium isotope exchange in contrast to the theoretical prediction that the Kitaev spin liquid is stable only for a limited phase space of magnetic interactions. The bond- and site disorders associated with disordered OD(H) bonds, in combination with Kitaev physics, may play a role in realizing the quantum liquid state. |
| format | Article |
| id | doaj-art-bb7c4926273f4059994c6980a91dfc32 |
| 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-bb7c4926273f4059994c6980a91dfc322025-01-19T12:09:00ZengNature Portfolionpj Quantum Materials2397-46482025-01-011011810.1038/s41535-025-00727-wRobust quantum spin liquid state in the presence of giant magnetic isotope effect in D3LiIr2O6T. Takayama0A. S. Gibbs1K. Kitagawa2Y. Matsumoto3K. Ishii4A. Kato5R. Takano6S. Bette7R. Dinnebier8H. Takagi9Max Planck Institute for Solid State ResearchISIS Neutron and Muon Source, STFC Rutherford Appleton Laboratory, ChiltonDepartment of Physics, University of TokyoMax Planck Institute for Solid State ResearchSynchrotron Radiation Research Center, National Institutes for Quantum Science and TechnologyDepartment of Physics, University of TokyoDepartment of Physics, University of TokyoMax Planck Institute for Solid State ResearchMax Planck Institute for Solid State ResearchMax Planck Institute for Solid State ResearchAbstract The deuterium isotope effect on the honeycomb iridate H3LiIr2O6, a quantum spin-orbit-entangled liquid, was examined by synthesizing D3LiIr2O6. The structural refinements indicate the different character of the interlayer OH and OD bonds, which results in a giant isotope effect on the magnetic interactions; the antiferromagnetic Curie-Weiss temperature |θ CW| of D3LiIr2O6 increases to ~ 170 K from ~ 100 K of H3LiIr2O6. Nevertheless, the quantum liquid state is robust against the deuterium isotope exchange in contrast to the theoretical prediction that the Kitaev spin liquid is stable only for a limited phase space of magnetic interactions. The bond- and site disorders associated with disordered OD(H) bonds, in combination with Kitaev physics, may play a role in realizing the quantum liquid state.https://doi.org/10.1038/s41535-025-00727-w |
| spellingShingle | T. Takayama A. S. Gibbs K. Kitagawa Y. Matsumoto K. Ishii A. Kato R. Takano S. Bette R. Dinnebier H. Takagi Robust quantum spin liquid state in the presence of giant magnetic isotope effect in D3LiIr2O6 npj Quantum Materials |
| title | Robust quantum spin liquid state in the presence of giant magnetic isotope effect in D3LiIr2O6 |
| title_full | Robust quantum spin liquid state in the presence of giant magnetic isotope effect in D3LiIr2O6 |
| title_fullStr | Robust quantum spin liquid state in the presence of giant magnetic isotope effect in D3LiIr2O6 |
| title_full_unstemmed | Robust quantum spin liquid state in the presence of giant magnetic isotope effect in D3LiIr2O6 |
| title_short | Robust quantum spin liquid state in the presence of giant magnetic isotope effect in D3LiIr2O6 |
| title_sort | robust quantum spin liquid state in the presence of giant magnetic isotope effect in d3liir2o6 |
| url | https://doi.org/10.1038/s41535-025-00727-w |
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