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Aspects of the Verwey transition in magnetite

✍ 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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Surface Verwey Transition in Magnetite
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## 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 Hartree‐Fock approximation. A tight‐binding calculation of the band structure with Verwey ordering yields a gap in the sing

Mechanism of the Verwey Transition in Ma
✍ Piekarz, PrzemysΕ‚aw; Parlinski, Krzysztof; OleΕ›, Andrzej M. πŸ“‚ Article πŸ“… 2006 πŸ› The American Physical Society 🌐 English βš– 232 KB
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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