A δ-function-like peak in the specific heat of two-dimensional vortex lattice: Monte Carlo study

被引：0
|
作者：
Liang Yan-tian
Cao Yi-gang
Jiao Zheng-kuan
机构：
[1] Zhejiang University,Department of Physics
[2] Xinxiang Teachers College,Department of Physics
来源：
Journal of Zhejiang University-SCIENCE A | 2002年 / 3卷 / 1期
关键词：
vortex lattice; Monte Carlo method; melting transition; Lindemann criterion; A; O511;
D O I：
10.1631/BF02881850
中图分类号：
学科分类号：
摘要：
A repulsive vortex-vortex interaction model was used to numerically study the melting transition of the two-dimensional vortex system with Monte Carlo method. Then a δ-function-like peak in the specific heat was observed and the internal energy showed a sharp drop at the melting temperature, which indicated that there exists a first-order melting transition at finite temperatures. The Lindemann criterion was also investigated and valid, but different from previous simulation results.
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页码：91 / 93
页数：2
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