A review on magnetic field induced spin crossover in LaCoO$_{3}$ up to 600 T
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arXiv
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| Auteurs principaux: | , , , |
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| Format: | Preprint |
| Publié: |
2024
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| _version_ | 1866915021331628032 |
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| author | Ikeda, Akihiko Matsuda, Yasuhiro H. Sato, Keisuke Nasu, Joji |
| author_facet | Ikeda, Akihiko Matsuda, Yasuhiro H. Sato, Keisuke Nasu, Joji |
| contents | \lco{} is known for its two-step spin crossover as a function of temperature. Despite efforts spanning over half a century, the origin of this phenomenon is still debated, particularly regarding how the microscopic spin states are involved in the observed macroscopic two-step spin crossover. High magnetic field studies on LaCoO$_{3}$ are performed because the magnetic field-induced spin crossover is induced, where the magnetic excited states become more stable in high magnetic fields than the non-magnetic ground states. This review focuses on the findings in LaCoO$_{3}$ at high magnetic fields over the last decade. A complex phase diagram has been revealed at high magnetic fields instead of solving the conventional problem of LaCoO$_{3}$. It suggests that appreciable spin state correlations are in play in LaCoO$_{3}$. The possibility of exciton condensation is also discussed. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2407_00645 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | A review on magnetic field induced spin crossover in LaCoO$_{3}$ up to 600 T Ikeda, Akihiko Matsuda, Yasuhiro H. Sato, Keisuke Nasu, Joji Strongly Correlated Electrons \lco{} is known for its two-step spin crossover as a function of temperature. Despite efforts spanning over half a century, the origin of this phenomenon is still debated, particularly regarding how the microscopic spin states are involved in the observed macroscopic two-step spin crossover. High magnetic field studies on LaCoO$_{3}$ are performed because the magnetic field-induced spin crossover is induced, where the magnetic excited states become more stable in high magnetic fields than the non-magnetic ground states. This review focuses on the findings in LaCoO$_{3}$ at high magnetic fields over the last decade. A complex phase diagram has been revealed at high magnetic fields instead of solving the conventional problem of LaCoO$_{3}$. It suggests that appreciable spin state correlations are in play in LaCoO$_{3}$. The possibility of exciton condensation is also discussed. |
| title | A review on magnetic field induced spin crossover in LaCoO$_{3}$ up to 600 T |
| topic | Strongly Correlated Electrons |
| url | https://arxiv.org/abs/2407.00645 |