Itinerant ferromagnetism in disordered metals: A mean-field theory

被引：64

作者：

Andreev, AV ^{[1
]}

Kamenev, A

机构：

[1] Univ Calif Santa Barbara, Inst Theoret Phys, Santa Barbara, CA 93106 USA

[2] Univ Calif Santa Barbara, Dept Phys, Santa Barbara, CA 93106 USA

来源：

PHYSICAL REVIEW LETTERS | 1998年 / 81卷 / 15期

关键词：

D O I：

10.1103/PhysRevLett.81.3199

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We develop a mean-field approach to interacting disordered systems of itinerant electrons based on a statistical treatment of disorder enhanced Hartree-Fock interactions. We demonstrate that for d less than or equal to 2 a disordered system may exhibit a finite temperature partial spin polarization even if its clean analog is paramagnetic. The disorder and temperature dependent magnetization and spin susceptibility are calculated. Possible relevance to recent experiments on quantum dots is discussed. [S0031-9007(98)07325-6].

引用

页码：3199 / 3202

页数：4

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