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Hund’s coupling and the metal-insulator transition in the two-band Hubbard model

✍ Scribed by Th. Pruschke; R. Bulla

Book ID
111621395
Publisher
Springer
Year
2005
Tongue
English
Weight
358 KB
Volume
44
Category
Article
ISSN
1434-6036

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📜 SIMILAR VOLUMES

Magnetism in the single- and two-band Hu
Magnetism in the single- and two-band Hubbard models: Generalized Hund's coupling
✍ Koichi Kusakabe; Hideo Aoki 📂 Article 📅 1991 🏛 Elsevier Science 🌐 English ⚖ 258 KB

Occurrence of high-spin ground states in strongly-correlated electron systems is explored. In the single-band Hubbard model, high-spin states arise even for small U due to a 'k-space Hund's coupling', which cross over to strong-U states including Nagaoka's state around the half filling. The magnetic