STUDY OF A FRUSTRATED HEISENBERG ANTIFERROMAGNETIC MODEL IN 2 DIMENSIONS

被引：0

作者：

CUI, SM

机构：

[1] JIAO TONG UNIV,INST CONDENSED MATTER PHYS,SHANGHAI 200030,PEOPLES R CHINA

[2] JIAO TONG UNIV,DEPT PHYS,SHANGHAI 200030,PEOPLES R CHINA

来源：

COMMUNICATIONS IN THEORETICAL PHYSICS | 1992年 / 18卷 / 04期

关键词：

D O I：

10.1088/0253-6102/18/4/465

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

A two-dimensional (2D) frustrated Heisenberg antiferromagnetic (AF) model with next-nearest-neighbor exchange couplings on the square lattice is studied by using green's function technique. It is shown that there always exists a finite zero-temperature staggered magnetization in contrast to the conventional spin-wave calculations, indicating the existence of the Neel-type long-range order in the ground state even for strong frustration.

引用

页码：465 / 468

页数：4

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