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Free-energy formula for a superconducting alloy with localized states in the energy gap: Eliashberg formalism

Journal Article · · Phys. Rev. B: Condens. Matter; (United States)

We give a derivation of the formula for calculating the free-energy difference between the superconducting and the normal states of a weak-coupling superconductor with localized states within the energy gap (induced by magnetic impurities) by using the technique of coupling-constant integration. We use the Eliashberg formalism and the square-well model of the electron-phonon interaction.

Research Organization:
Department of Physics, University of Waterloo, Waterloo, Ontario, Canada N2Lchemically bond3G1
OSTI ID:
6989949
Journal Information:
Phys. Rev. B: Condens. Matter; (United States), Journal Name: Phys. Rev. B: Condens. Matter; (United States) Vol. 37:16; ISSN PRBMD
Country of Publication:
United States
Language:
English