Vortex-antivortex pair fluctuations in quenched diluted layered easy-plane magnets

被引：6
作者：
Pereira, AR [1 ]
机构：
[1] Univ Fed Vicosa, Dept Fis, BR-36570000 Vicosa, MG, Brazil
来源：
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2004年 / 279卷 / 2-3期
关键词：
impurities; vortices; XY-model;
D O I：
10.1016/j.jmmm.2004.02.007
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
It is shown that a nonmagnetic site in a two-dimensional XY magnetic material may create a new type of static vortex-antivortex pair (pinned-pair) with lower energy than the conventional one found in the pure crystals. Because of their larger Boltzmann factor, these pinned structures may dominate the conventional pairs, affecting significantly the thermodynamic quantities of the layered quenched diluted magnetic systems with easy-plane anisotropy. (C) 2004 Elsevier B.V. All rights reserved.
引用
收藏
页码：396 / 400
页数：5
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