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Instability of the Nagaoka ferromagnetic state in the Hubbard model with next-nearest-neighbor hopping

✍ Scribed by Oleś, A. M.; Prelovek, P.

Book ID
121742738
Publisher
The American Physical Society
Year
1991
Tongue
English
Weight
422 KB
Volume
43
Category
Article
ISSN
1098-0121

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We study the interplay between antiferromagnetism and the paramagnetic metal-insulator-transition (PMIT) on a Bethe lattice with nearest and next-nearest neighbor hopping. For t 2 =t 1 -1 the PMIT outgrows the antiferromagnetic phase and shows a scenario similar to V 2 O 3 . We also look at other or