SPIN-WAVE STIFFNESS OF THE HEISENBERG-ANTIFERROMAGNET AT ZERO-TEMPERATURE

被引：48

作者：

HAMER, CJ

ZHENG, WH

OITMAA, J

机构：

[1] School of Physics, University of New South Wales, Sydney

来源：

PHYSICAL REVIEW B | 1994年 / 50卷 / 10期

关键词：

D O I：

10.1103/PhysRevB.50.6877

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The spin-wave stiffness rho(s) of the Heisenberg antiferromagnet at zero temperature is calculated in two ways, by spin-wave theory and by series expansion about the Ising limit, extending previous results. The two methods give values of rho(s) for the isotropic model which are in good agreement, and which satisfy the hydrodynamic relation.

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页码：6877 / 6888

页数：12

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