<abstract xml:lang="en" xmlns="http://www.w3.org/1999/xhtml"><p>In this study specific heat jump using two-gap Ginzburg-Landau (GL) theory has been calculated. In contrast to the previous approaches, we have taken into account intergradient order parameters interaction in the GL free energy functional. The thermodynamic magnetic field revealed nonlinear temperature dependence due to interband interaction between order parameters and their gradients. The calculations showed that the specific heat jump in two-order parameter superconductors was smaller than that of single-order parameter superconductors. It has been shown that such a model is in good agreement with experimental data for KFe2As2 superconductors.</p></abstract>

In this study specific heat jump using two-gap Ginzburg-Landau (GL) theory has been calculated. In contrast to the previous approaches, we have taken into account intergradient order parameters interaction in the GL free energy functional. The thermodynamic magnetic field revealed nonlinear temperature dependence due to interband interaction between order parameters and their gradients. The calculations showed that the specific heat jump in two-order parameter superconductors was smaller than that of single-order parameter superconductors. It has been shown that such a model is in good agreement with experimental data for KFe2As2 superconductors.

Specific heat jump of two-band superconductor KFe2As2 using Ginzburg-Landau theory

Computer Engineering Department and Center of Excellence of Superconductivity Research, Ankara University, Ankara, 06100, Turkey

Institute of Physics Azerbaijan National Academy of Sciences, Baku, Az1143, Azerbaijan

Materials Science-Poland

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

In this study specific heat jump using two-gap Ginzburg-Landau (GL) theory has been calculated. In contrast to the previous approaches, we have taken into...

Specific heat jump of two-band superconductor KFe2As2 using Ginzburg-Landau theory

Published Online: Oct 17, 2014

Page range: 465 - 469

DOI: https://doi.org/10.2478/s13536-014-0212-2

Keywords
Fe based superconductors, Ginzburg-Landau theory, specific heat jump, two-band superconductivity

© 2014 Wroclaw University of Technology

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Specific heat jump of two-band superconductor KFe2As2 using Ginzburg-Landau theory

Published Online: Oct 17, 2014

Page range: 465 - 469

DOI: https://doi.org/10.2478/s13536-014-0212-2

KeywordsFe based superconductors, Ginzburg-Landau theory, specific heat jump, two-band superconductivity

© 2014 Wroclaw University of Technology

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Keywords
Fe based superconductors, Ginzburg-Landau theory, specific heat jump, two-band superconductivity