Precisive calculation of specific heat in type-II superconductor under magnetic field. (December 2018)

• Record Type: Journal Article
• Authors: Duc Tinh, Bui; Thu, Le Minh; Hoc, Nguyen Quang
• Is Part Of: Solid state communications. Volume 284/286(2018)
• Page Start: 11
• Page End: 13
• Publication Date: 2018-12
• Subjects: 74.40.Gh -- 74.25.fc -- 74.20.De; Solid state chemistry -- Periodicals; Solid state physics -- Periodicals; Chimie de l'état solide -- Périodiques; Physique de l'état solide -- Périodiques; 530.41
• DOI: 10.1016/j.ssc.2018.08.015
• Languages: English
• ISSNs: 0038-1098

Abstract

Abstract: A precisive calculation of specific heat contributions of vortex liquids and solids in type-II superconductor is presented. We use the self-consistent method in the presence of magnetic field for the Ginzburg-Landau description of thermal fluctuations effects in the vortex liquids. Self-consistent calculation of the specific heat summing over all Landau levels is valid for arbitrary values of the magnetic field not too close to H c 1 . Our results are in good agreement with the experimental data in a wide region around T c, including both the vortex liquid below T c and the normal state above T c . Our calculation shows that the specific heat behaves as a long tail which persists far into the normal state, indicating the residual superconductivity above T c .