SQUARE-LATTICE HEISENBERG-ANTIFERROMAGNET AT T = O

被引:83
作者
ZHENG, WH
OITMAA, J
HAMER, CJ
机构
[1] School of Physics, University of New South Wales, Kensington, NSW
来源
PHYSICAL REVIEW B | 1991年 / 43卷 / 10期
关键词
D O I
10.1103/PhysRevB.43.8321
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The spin -1/2 and spin-1 Heisenberg antiferromagnets on a square lattice are studied via series expansions around the Ising limit. Series are calculated for the ground-state energy, staggered magnetization, transverse susceptibility, staggered parallel susceptibility, and mass gap. Extrapolating these series to the isotropic limit, we find extremely good agreement with the predictions of spin-wave theory.
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页码:8321 / 8330
页数:10
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