Anomalous gapless superconductivity due to scattering from localized noninteracting spins

Abstract

Electron tunneling measurements made on lanthanum-cerium alloy films show large deviations from the Abrikosov-Gor'kov theory of gapless superconductivity. It has been suggested that such deviations should occur for an alloy system such as cerium in lanthanum which exhibits resonant scattering. © 1967 The American Physical Society.