Specific heat of MgB${}_2$ in a one- and a two-band model from first-principles calculations

A. A. Golubov, J. Kortus, O. V. Dolgov +6

The heat capacity anomaly at the transition to superconductivity of the layered superconductor MgB${}_2$ is compared to first-principles calculations with the Coulomb repulsion, $μ^\…