Comment on "Anisotropic s-wave superconductivity in MgB_2"

Abstract

An analytical result for renormalization of the jump of the heat capacity Delta C/C_N by the anisotropy of the order parameter is derived in the framework of the model proposed by Haas and Maki [Phys. Rev. B 65, 020502(R) (2001)], for both prolate and oblate anisotropy. The graph of Delta C/C_N versus the ratio of the gaps on the equator and the pole, Delta_e/Delta_p, of the Fermi surface allows a direct determination of the gap anisotropy parameter Delta_e/Delta_p using data from specific heat measurements.

1 page, 1 figure, REVTeX 4, to be submitted to Phys. Rev. B

References in corpus (1)

• Temperature and field dependence of the anisotropy of MgB2

Cited by in corpus (6)

• Elaboration of the alpha-Model Derived from the BCS Theory of Superconductivity
• Unusual effects of anisotropy on the specific heat of ceramic and single crystal MgB2
• Strongly Anisotropic s-Wave Gaps in Exotic Superconductors
• Thermodynamics of anisotropic-gap and multiband clean BCS superconductors
• Specific Heat Discontinuity in Impure Two-Band Superconductors
• Effect of nonmagnetic and magnetic impurities on the specific heat jump in anisotropic superconductors