Double perovskite Ba2NaOsO6: Magnetic structure, Kramers doublet and x-ray magnetic dichroic signals
Fuente:
arXiv
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| Formato: | Preprint |
| Publicado: |
2025
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| _version_ | 1866915257609355264 |
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| author | Lovesey, S W |
| author_facet | Lovesey, S W |
| contents | Of all the oxides of osmium, Ba2NaOsO6 is the only one with a substantial ferromagnetic moment. A fresh theoretical study of bulk magnetic properties of the double perovskite is accomplished with an appropriate space group, and an atomic model of a Kramers doublet formed by the single osmium d-electron. It possesses symmetry demanded by the Wyckoff position assigned to Os in a canted ferromagnet. Whereupon, magnetic moments in the paramagnetic and magnetically ordered states of Ba2NaOsO6 are unified. Analytic x-ray magnetic dichroic signals (XMCD) at osmium L2 and L3 absorption edges are presented, and shown to agree with hitherto unexplained recent measurements. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2501_04414 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Double perovskite Ba2NaOsO6: Magnetic structure, Kramers doublet and x-ray magnetic dichroic signals Lovesey, S W Strongly Correlated Electrons Of all the oxides of osmium, Ba2NaOsO6 is the only one with a substantial ferromagnetic moment. A fresh theoretical study of bulk magnetic properties of the double perovskite is accomplished with an appropriate space group, and an atomic model of a Kramers doublet formed by the single osmium d-electron. It possesses symmetry demanded by the Wyckoff position assigned to Os in a canted ferromagnet. Whereupon, magnetic moments in the paramagnetic and magnetically ordered states of Ba2NaOsO6 are unified. Analytic x-ray magnetic dichroic signals (XMCD) at osmium L2 and L3 absorption edges are presented, and shown to agree with hitherto unexplained recent measurements. |
| title | Double perovskite Ba2NaOsO6: Magnetic structure, Kramers doublet and x-ray magnetic dichroic signals |
| topic | Strongly Correlated Electrons |
| url | https://arxiv.org/abs/2501.04414 |