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ZJUS-A
Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering)  2002, Vol. 3 Issue (1): 91-93    DOI: 10.1631/jzus.2002.0091
Applied Physics & Mathematics     
A δ-function-like peak in the specific heat of two-dimensional vortex lattice: Monte carlo study
LIANG Yan-tian, CAO Yi-gang, JIAO Zheng-kuan
Department of Physics, Zhejiang University, Hangzhou 310027, China; Department of Physics, Xinxiang Teachers College, Xinxiang 453000, China
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Abstract  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.

Key words： vortex lattice      Monte Carlo method      melting transition      Lindemann criterion     
Received: 18 May 2001     
CLC:  O511  
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CAO Yi-gang
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LIANG Yan-tian, CAO Yi-gang, JIAO Zheng-kuan. A δ-function-like peak in the specific heat of two-dimensional vortex lattice: Monte carlo study. Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering), 2002, 3(1): 91-93.

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http://www.zjujournals.com/xueshu/zjus-a/10.1631/jzus.2002.0091     OR     http://www.zjujournals.com/xueshu/zjus-a/Y2002/V3/I1/91

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