Thermodynamics of two-band superconductors : The case of MgB 2

  title={Thermodynamics of two-band superconductors : The case of MgB 2},
  author={O. V. Dolgov and Reinhard K Kremer and Alexander A. Golubov},
Thermodynamic properties of the multiband superconductor MgB2 have often been described using a simple sum of the standard BCS expressions corresponding to and bands. However, it is a priori not clear if this approach is working always adequately, particularly in cases of strong interband scattering. Here we compare the often used approach of a sum of two independent bands using BCS-like model expressions for the specific heat, entropy, and free energy to the solution of the full Eliashberg… CONTINUE READING