A New Phase Transition in Dense Vortices
CHEN Zhijian, ZHANG Yumei* , XU Bowei
Department of Physics, Shanghai Jiaotong University, Shanghai 200030
* Department of Physics, Tongji University, Shanghai 200092
A New Phase Transition in Dense Vortices
CHEN Zhijian;ZHANG Yumei* ;XU Bowei
Department of Physics, Shanghai Jiaotong University, Shanghai 200030
* Department of Physics, Tongji University, Shanghai 200092
关键词 ：
64.60.Cn ,
64.60.Fr ,
67.40.Db
Abstract ： An improved XY model is adopted for the vortices in the superconductors. In the case of high density, the fugacity should be modified by the higher harmonics. By use of the variational effective potential, we analyze the discontinuous phase transition for the dense vortices below the Kosterlitz-Thouless transition temperature.
Key words ：
64.60.Cn
64.60.Fr
67.40.Db
出版日期: 1995-05-01
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1995, Vol. 12 
