Thermodynamics of Two - Band Superconductors: The Case of MgB${}_2$

Oleg V. Dolgov, Reinhard K. Kremer, Jens Kortus +2

Thermodynamic properties of the multiband superconductor MgB${}_2$ have often been described using a simple sum of the standard BCS expressions corresponding to $\sigma$- and $\pi$-bands.…