Contributions to the theory of ferromagnetism in the degenerate Hubbard model

被引：0

作者：

R. O. Zaitsev

机构：

[1] Kurchatov Institute,

来源：

Journal of Experimental and Theoretical Physics | 1997年 / 85卷

关键词：

Spectroscopy; State Physics; Field Theory; Elementary Particle; Quantum Field Theory;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

The possibility of ferromagnetic ordering in a generalized Hubbard model with allowance for degeneracy and for infinite Hubbard energy is studied. The region of existence of ferromagnetism for electron density greater than 1 is determined. It is shown that for electron density less than 1 ferromagnetism exists only in special cases when the Fermi surface passes near van Hove singularities.

引用

页码：1218 / 1224

页数：6

共 50 条

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