ON THE SELF-CONSISTENT SPIN-WAVE THEORY OF FRUSTRATED HEISENBERG ANTIFERROMAGNETS

被引：36
|
作者：
IRKHIN, VY
KATANIN, AA
KATSNELSON, MI
机构：
[1] Inst. of Metal. Phys., Ekaterinburg
来源：
JOURNAL OF PHYSICS-CONDENSED MATTER | 1992年 / 4卷 / 22期
关键词：
D O I：
10.1088/0953-8984/4/22/019
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
The phase diagrams of Heisenberg antiferromagnets with frustrated exchange interactions are obtained by using the self-consistent spin-wave approximation. The square, simple-cubic and quasi-1D antiferromagnets are considered with different values of spin S. An important role of spin-wave renormalizations of exchange parameters is demonstrated. The temperature dependences of the correlation length and spin-wave damping are calculated. It is shown that a wide temperature region above T(N) with a strong short-range order exists in frustrated 3D systems.
引用
收藏
页码：5227 / 5237
页数：11
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