METALLIC FERROMAGNETISM IN THE 2-BAND HUBBARD-MODEL

被引：23

作者：

KUSAKABE, K

AOKI, H

机构：

[1] Department of Physics, University of Tokyo, Hongo, Tokyo

来源：

PHYSICA B | 1994年 / 194卷

关键词：

D O I：

10.1016/0921-4526(94)90438-3

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Ferromagnetic phase is numerically shown to exists in the J(intra-atomic exchange) - U'(direct Coulomb repulsion) diagram for the two-band Hubbard model in one dimension. A rigorous proof of the ferromagnetism is also given for arbitrary band filling for J = U' = infinity, and metallic ferromagnetism is numerically shown to appear for J = U' < infinity for the quarter-filled band.

引用

页码：217 / 218

页数：2

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