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| Main Authors: | , , , |
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| Format: | Preprint |
| Published: |
2024
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2411.12613 |
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| _version_ | 1866915621901434880 |
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| author | Ryumshin, V. S. Nuzhin, S. V. Panov, Yu. D. Moskvin, A. S. |
| author_facet | Ryumshin, V. S. Nuzhin, S. V. Panov, Yu. D. Moskvin, A. S. |
| contents | Rare-earth orthonickelates RNiO3 are Jahn-Teller magnets, unstable with respect to the anti-Jahn-Teller disproportionation reaction with the formation of a system equivalent to a system of effective spin-triplet composite bosons moving in a non-magnetic lattice. Within the framework of the two-sublattice approximation, we have developed a mean field theory for a model nickelate with competition between phases of charge ordering, an antiferromagnetic insulator and a spin-triplet superconductor, and constructed phase diagrams taking into account phase separation. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2411_12613 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | The mean field approximation for a system of triplet bosons in nickelates Ryumshin, V. S. Nuzhin, S. V. Panov, Yu. D. Moskvin, A. S. Statistical Mechanics Rare-earth orthonickelates RNiO3 are Jahn-Teller magnets, unstable with respect to the anti-Jahn-Teller disproportionation reaction with the formation of a system equivalent to a system of effective spin-triplet composite bosons moving in a non-magnetic lattice. Within the framework of the two-sublattice approximation, we have developed a mean field theory for a model nickelate with competition between phases of charge ordering, an antiferromagnetic insulator and a spin-triplet superconductor, and constructed phase diagrams taking into account phase separation. |
| title | The mean field approximation for a system of triplet bosons in nickelates |
| topic | Statistical Mechanics |
| url | https://arxiv.org/abs/2411.12613 |