Heat transport in low-dimensional Heisenberg antiferromagnets

被引：3
|
作者：
Lima, L. S. [1 ]
Pires, A. S. T. [2 ]
机构：
[1] Univ Kaiserslautern, Dept Phys, D-67663 Kaiserslautern, Germany
[2] Univ Fed Minas Gerais, Dept Fis, BR-30123970 Belo Horizonte, MG, Brazil
来源：
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2010年 / 322卷 / 15期
关键词：
Magnetically ordered material; Heat transport;
D O I：
10.1016/j.jmmm.2010.02.001
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
In this paper we study thermal transport in the one-dimensional spin S=1 and the two dimensional spin S=1/2 Heisenberg antiferromagnets, using the modified spin wave theory and the Kubo linear response formalism, to calculate the thermal conductivity. The low-temperature thermal Drude weights, in both cases, are non-zero at finite temperature indicating a ballistic behavior. (C) 2010 Elsevier B.V. All rights reserved.
引用
收藏
页码：2157 / 2159
页数：3
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