Effect of band structure on ferromagnetism
- 1 August 1974
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 10 (3) , 1006-1010
- https://doi.org/10.1103/physrevb.10.1006
Abstract
We extend Nagaoka's study of the ferromagnetism of nearly half-filled bands in the infinite-repulsion limit of the Hubbard model by including next-nearest-neighbor tight-binding overlap matrix elements . Particles can now get past one another, even in one dimension. We find corroboration of nagaoka;s results, viz., either possibility or impossibility of ferromagnetism depending on the relative sign and magnitude of .
Keywords
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