Charge transfer transitions and circular magnetooptics in ferrites
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arXiv
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| Format: | Preprint |
| Veröffentlicht: |
2024
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| _version_ | 1866929218145746944 |
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| author | Moskvin, Alexander |
| author_facet | Moskvin, Alexander |
| contents | The concept of charge-transfer (CT) transitions in ferrites is based on the cluster approach and takes into account the relevant interactions as the low-symmetry crystal field, spin-orbital, Zeeman, exchange and exchange-relativistic interactions. For all its simplicity, this concept yield a reliable qualitative and quantitative microscopic explanation of spectral, concentration, temperature, and field dependences of optic and magneto-optic properties ranging from the isotropic absorption as well as the optic anisotropy to the circular magneto-optics. In this review paper, starting with a critical analysis of the fundamental shortcomings of the "first-principles" DFT-based band theory we present the main ideas and techniques of the cluster theory of the CT transitions to be main contributors to circular magneto-optics of ferrites. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2401_11267 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Charge transfer transitions and circular magnetooptics in ferrites Moskvin, Alexander Materials Science Strongly Correlated Electrons The concept of charge-transfer (CT) transitions in ferrites is based on the cluster approach and takes into account the relevant interactions as the low-symmetry crystal field, spin-orbital, Zeeman, exchange and exchange-relativistic interactions. For all its simplicity, this concept yield a reliable qualitative and quantitative microscopic explanation of spectral, concentration, temperature, and field dependences of optic and magneto-optic properties ranging from the isotropic absorption as well as the optic anisotropy to the circular magneto-optics. In this review paper, starting with a critical analysis of the fundamental shortcomings of the "first-principles" DFT-based band theory we present the main ideas and techniques of the cluster theory of the CT transitions to be main contributors to circular magneto-optics of ferrites. |
| title | Charge transfer transitions and circular magnetooptics in ferrites |
| topic | Materials Science Strongly Correlated Electrons |
| url | https://arxiv.org/abs/2401.11267 |