Landau approach to the spin-Peierls transition

被引：1
|
作者：
Holicki, M [1 ]
Fehske, H [1 ]
机构：
[1] Univ Bayreuth, Inst Phys, D-95440 Bayreuth, Germany
来源：
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2001年 / 226卷
关键词：
Peierls spin transition; magnetoelastic effect; lattice instability; elastic constant;
D O I：
10.1016/S0304-8853(00)01192-6
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
We use a statically dimerized one-dimensional XY-model to describe a spin-Peierls system. From this model, we determine the Landau free energy functional with the dimerization as order parameter. This enables us to calculate thermodynamic properties, as well as the coupling of the strain to the order parameter. (C) 2001 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：397 / 399
页数：3
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