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Magnetic properties of the two-band Hubbard model with different bandwidths

โœ Scribed by Yohta Koyama; Akihisa Koga; Norio Kawakami; Philipp Werner


Publisher
Elsevier Science
Year
2009
Tongue
English
Weight
237 KB
Volume
404
Category
Article
ISSN
0921-4526

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๐Ÿ“œ SIMILAR VOLUMES


Magnetism in the single- and two-band Hu
โœ Koichi Kusakabe; Hideo Aoki ๐Ÿ“‚ Article ๐Ÿ“… 1991 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 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