Landau theory description of autferroicity
Fuente:
arXiv
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| Autores principales: | , , |
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| Formato: | Preprint |
| Publicado: |
2025
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| Materias: | |
| Acceso en línea: | |
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| _version_ | 1866908383287705600 |
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| author | Zhang, Jun-Jie Yakobson, Boris I. Dong, Shuai |
| author_facet | Zhang, Jun-Jie Yakobson, Boris I. Dong, Shuai |
| contents | Autferroics, recently proposed as a sister branch of multiferroics, exhibit strong intrinsic magnetoelectricity, but ferroelectricity and magnetism are mutually exclusive rather than coexisting. Here, a general model is considered based on the Landau theory, to clarify the distinction between multi and autferroics by qualitative change-rotation in Landau free energy landscape and in particular phase mapping. The TiGeSe$_3$ exemplifies a factual material, whose first-principles computed Landau coefficients predict its autferroicity. Our investigations pave the way for an alternative avenue in the pursuit of intrinsically strong magnetoelectrics. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2505_01792 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Landau theory description of autferroicity Zhang, Jun-Jie Yakobson, Boris I. Dong, Shuai Materials Science Strongly Correlated Electrons Autferroics, recently proposed as a sister branch of multiferroics, exhibit strong intrinsic magnetoelectricity, but ferroelectricity and magnetism are mutually exclusive rather than coexisting. Here, a general model is considered based on the Landau theory, to clarify the distinction between multi and autferroics by qualitative change-rotation in Landau free energy landscape and in particular phase mapping. The TiGeSe$_3$ exemplifies a factual material, whose first-principles computed Landau coefficients predict its autferroicity. Our investigations pave the way for an alternative avenue in the pursuit of intrinsically strong magnetoelectrics. |
| title | Landau theory description of autferroicity |
| topic | Materials Science Strongly Correlated Electrons |
| url | https://arxiv.org/abs/2505.01792 |