FREE-VORTEX FORMATION OF THE PLANE ROTATOR MODEL

被引：1

作者：

KIKUCHI, M ^{[1
]}

KAWAMURA, H ^{[1
]}

机构：

[1] OSAKA UNIV, COLL GEN EDUC, DEPT PHYS, TOYONAKA, OSAKA 560, JAPAN

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 1992年 / 104卷 / pt 1期

关键词：

D O I：

10.1016/0304-8853(92)90775-J

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Free-votex contribution to the Kosterlitz-Thouless (KT) transition of the two-dimensional plane rotator model is studied by Monte Carlo simulations. We calculate the excess free energy due to a free vortex using a particular boundary condition which introduces a free vortex into the system. The formation of free vortices is suppressed at low temperatures, while it is enhanced at high temperatures, consistent with the vortex pair binding-unbinding mechanism of the KT theory.

引用

页码：227 / 228

页数：2

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