QUANTUM-FIELD-THEORY APPROACH TO THE HEISENBERG HAMILTONIAN, MODIFIED SPIN-WAVE THEORY, AND APPLICATION TO AN ANTIFERROMAGNET WITH A SQUARE LATTICE

被引：19

作者：

LIU, FS

WANG, ZC

CHEN, WF

YUAN, XJ

机构：

[1] SICHUAN RES CTR THEORET PHYS,CHENGDU,PEOPLES R CHINA

[2] CHINESE CTR ADV SCI & TECHNOL,WORLD LAB,BEIJING 100871,PEOPLES R CHINA

[3] CHINESE ACAD SCI,SHANGHAI INST MET,SHANGHAI 200050,PEOPLES R CHINA

[4] CHINESE ACAD SCI,INST ADM,BEIJING 100080,PEOPLES R CHINA

[5] CENT & S FOREST INST,DEPT PHYS,ZUZHOU 412006,PEOPLES R CHINA

来源：

PHYSICAL REVIEW B | 1995年 / 51卷 / 18期

关键词：

D O I：

10.1103/PhysRevB.51.12491

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

This paper proposes a quantum-field-theory approach to treat the anisotropic Heisenberg Hamiltonian, and gives a general temperature-dependent modified spin-wave theory. For a square-lattice antiferromagnet, the numerical calculations give several results in agreement with experiments or the Monte Carlo results, and several predictions which need future verification. © 1995 The American Physical Society.

引用

页码：12491 / 12497

页数：7

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