Theory of specific heat of vortex liquid of high Tc superconductors

doi:10.1088/1674-1056/25/10/107404

中国物理B ›› 2016, Vol. 25 ›› Issue (10): 107404-107404.doi: 10.1088/1674-1056/25/10/107404

• CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES • 上一篇下一篇

Theory of specific heat of vortex liquid of high T_c superconductors

Chen Bai(白晨), Cheng Chi(迟诚), Jiangfan Wang(王江帆)

Institute of Theoretical Physics, School of Physics, Peking University, Beijing 100871, China

收稿日期:2016-05-18 修回日期:2016-06-07 出版日期:2016-10-05 发布日期:2016-10-05
通讯作者: Jiangfan Wang E-mail:haihunshan@yeah.net
基金资助:
Project supported by the National Natural Science Foundation of China (Grant No. 11274018).

Theory of specific heat of vortex liquid of high T_c superconductors

Chen Bai(白晨), Cheng Chi(迟诚), Jiangfan Wang(王江帆)

Institute of Theoretical Physics, School of Physics, Peking University, Beijing 100871, China

Received:2016-05-18 Revised:2016-06-07 Online:2016-10-05 Published:2016-10-05
Contact: Jiangfan Wang E-mail:haihunshan@yeah.net
Supported by:
Project supported by the National Natural Science Foundation of China (Grant No. 11274018).

摘要/Abstract

摘要： Superconducting thermal fluctuation (STF) plays an important role in both thermodynamic and transport properties in the vortex liquid phase of high T_c superconductors. It was widely observed in the vicinity of the critical transition temperature. In the framework of Ginzburg-Landau-Lawrence-Doniach theory in magnetic field, a self-consistent analysis of STF including all Landau levels is given. Besides that, we calculate the contribution of STF to specific heat in vortex liquid phase for high T_c cuprate superconductors, and the fitting results are in good agreement with experimental data.

关键词: superconducting thermal fluctuation, vortex liquid, self-consistent approximation, specific heat

Abstract: Superconducting thermal fluctuation (STF) plays an important role in both thermodynamic and transport properties in the vortex liquid phase of high T_c superconductors. It was widely observed in the vicinity of the critical transition temperature. In the framework of Ginzburg-Landau-Lawrence-Doniach theory in magnetic field, a self-consistent analysis of STF including all Landau levels is given. Besides that, we calculate the contribution of STF to specific heat in vortex liquid phase for high T_c cuprate superconductors, and the fitting results are in good agreement with experimental data.

Key words: superconducting thermal fluctuation, vortex liquid, self-consistent approximation, specific heat

中图分类号: (Fluctuation phenomena)

74.40.-n

74.25.Uv (Vortex phases (includes vortex lattices, vortex liquids, and vortex glasses)) 31.15.xr (Self-consistent-field methods) 65.40.Ba (Heat capacity)

白晨, 迟诚, 王江帆. Theory of specific heat of vortex liquid of high T_c superconductors[J]. 中国物理B, 2016, 25(10): 107404-107404.

Chen Bai(白晨), Cheng Chi(迟诚), Jiangfan Wang(王江帆). Theory of specific heat of vortex liquid of high T_c superconductors[J]. Chin. Phys. B, 2016, 25(10): 107404-107404.

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Theory of specific heat of vortex liquid of high T_c superconductors

Theory of specific heat of vortex liquid of high T_c superconductors

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