Theory of specific heat of vortex liquid of high Tc superconductors

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

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.

Keywords: superconducting thermal fluctuation vortex liquid self-consistent approximation specific heat

Received: 18 May 2016
Revised: 07 June 2016
Accepted manuscript online:

PACS:	74.40.-n	(Fluctuation phenomena)
	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)

Fund: Project supported by the National Natural Science Foundation of China (Grant No. 11274018).

Corresponding Authors: Jiangfan Wang
E-mail: haihunshan@yeah.net

Cite this article:

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 2016 Chin. Phys. B 25 107404

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