Aspects of the Verwey transition in magnetite
β Scribed by Seo, Hitoshi; Ogata, Masao; Fukuyama, Hidetoshi
- Book ID
- 121675138
- Publisher
- The American Physical Society
- Year
- 2002
- Tongue
- English
- Weight
- 707 KB
- Volume
- 65
- Category
- Article
- ISSN
- 1098-0121
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π SIMILAR VOLUMES
## Abstract The Verwey transition in magnetite is investigated using a band model with interatomic Coulomb energy introduced by Cullen and Callen. This model is treated in the HartreeβFock approximation. A tightβbinding calculation of the band structure with Verwey ordering yields a gap in the sing
By combining ab initio results for the electronic structure and phonon spectrum with the group theory, we establish the origin of the Verwey transition in Fe 3 O 4 . Two primary order parameters with X 3 and 5 symmetries are identified. They induce the phase transformation from the high-temperature