LOCAL-BAND THEORY OF ITINERANT FERROMAGNETISM .4. EQUIVALENT HEISENBERG-MODEL

被引：159

作者：

PRANGE, RE

KORENMAN, V

机构：

来源：

PHYSICAL REVIEW B | 1979年 / 19卷 / 09期

关键词：

D O I：

10.1103/PhysRevB.19.4691

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The main results of the picture of itinerant ferromagnetism previously presented are obtained by the functional-integral method of Stratonovitch and Hubbard. A new form of this technique is introduced which is spin rotationally invariant in all approximations and which respects the Pauli principle. By a generalization of the saddle-point method, the itinerant-electron thermodynamics is transformed to that of a classical Heisenberg model with Ruderman-Kittel exchange. © 1979 The American Physical Society.

引用

页码：4691 / 4697

页数：7

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