Weak ferrimagnets of the YFe1-xCrxO3 type: negative magnetization and spin reorientation
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arXiv
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| Format: | Preprint |
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2024
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| _version_ | 1866929643501649920 |
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| author | Vasinovich, E. V. Moskvin, A. S. |
| author_facet | Vasinovich, E. V. Moskvin, A. S. |
| contents | In this work, we present an analysis of magnetic properties of weak ferrimagnets of the YFe$_{1-x}$Cr$_x$O$_3$ type. Taking into account the main spin interactions - isotropic Heisenberg superexchange, antisymmetric Dzyaloshinskii-Moriya exchange, single-ion spin anisotropy - calculations of the free energy, concentration and temperature dependences of magnetization were carried out within a framework of a molecular field model. In particular, the model demonstrates the phenomena of temperature compensation and negative magnetization, as well as spin reorientation. The compensation temperature reaches room temperature T = 300 K in a composition with x = 0.45. The existence of magnetic structures of the $G_{xyz}$ type with the spatial orientation of the Neel vector is predicted. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2412_16173 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Weak ferrimagnets of the YFe1-xCrxO3 type: negative magnetization and spin reorientation Vasinovich, E. V. Moskvin, A. S. Strongly Correlated Electrons In this work, we present an analysis of magnetic properties of weak ferrimagnets of the YFe$_{1-x}$Cr$_x$O$_3$ type. Taking into account the main spin interactions - isotropic Heisenberg superexchange, antisymmetric Dzyaloshinskii-Moriya exchange, single-ion spin anisotropy - calculations of the free energy, concentration and temperature dependences of magnetization were carried out within a framework of a molecular field model. In particular, the model demonstrates the phenomena of temperature compensation and negative magnetization, as well as spin reorientation. The compensation temperature reaches room temperature T = 300 K in a composition with x = 0.45. The existence of magnetic structures of the $G_{xyz}$ type with the spatial orientation of the Neel vector is predicted. |
| title | Weak ferrimagnets of the YFe1-xCrxO3 type: negative magnetization and spin reorientation |
| topic | Strongly Correlated Electrons |
| url | https://arxiv.org/abs/2412.16173 |