ONSET OF LONG-RANGE ORDER IN A PARAMAGNET

被引：7

作者：

FISHMAN, RS ^{[1
]}

LIU, SH ^{[1
]}

机构：

[1] OAK RIDGE NATL LAB,DIV SOLID STATE,OAK RIDGE,TN 37831

来源：

PHYSICAL REVIEW B | 1992年 / 45卷 / 10期

关键词：

D O I：

10.1103/PhysRevB.45.5406

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The onset of long-range order in a paramagnet is studied using an expansion in powers of 1/z, where z is the number of nearest neighbors. Rather than expand the correlation function itself, we expand the self-energy in powers of 1/z. For both the Ising and Heisenberg models of ferromagnetism, the long-range correlations diverge at the true, shifted Curie temperature. Therefore, the magnetic and paramagnetic results of the 1/z expansion are consistent.

引用

页码：5406 / 5413

页数：8

共 21 条

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