SPIN STIFFNESS OF CANTED ANTIFERROMAGNETS

被引：23
|
作者：
AZARIA, P
DELAMOTTE, B
JOLICOEUR, T
MOUHANNA, D
机构：
[1] UNIV PARIS 06,PHYS THEOR & HAUTES ENERGIES LAB,F-75252 PARIS 05,FRANCE
[2] UNIV PARIS 07,F-75221 PARIS 05,FRANCE
[3] CENS,SERV PHYS THEOR,F-91191 GIF SUR YVETTE,FRANCE
来源：
PHYSICAL REVIEW B | 1992年 / 45卷 / 21期
关键词：
D O I：
10.1103/PhysRevB.45.12612
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
We use a nonlinear O(3) x O(2)/O(2) sigma model to describe the long-distance properties of two-dimensional classical Heisenberg canted antiferromagnets. The two-loop correlation length as well as the spin stiffness tensor are obtained by means of a renormalization-group calculation. Our results are applied to the triangular antiferromagnet. A discussion of possible comparison with Monte Carlo simulations is finally made.
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页码：12612 / 12615
页数：4
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