Kondo Effect in Superconductors

E. Müller-Hartmann; J. Zittartz

doi:10.1103/PhysRevLett.26.428

Kondo Effect in Superconductors

E. Müller-Hartmann and J. Zittartz

Phys. Rev. Lett. 26, 428 – Published 22 February 1971

Abstract

A self-consistent treatment of the Kondo scattering of conduction electrons from magnetic impurities is presented in order to treat finite concentrations of such impurities in superconductors. The present theory leads to a concentration dependence for the transition temperature which differs markedly from the Abrikosov-Gor'kov result. The theory appears to account nicely for various experimental results. We also find that superconductivity, under certain circumstances, does not exist at all temperatures below $T_{c}$ .

Received 23 November 1970

DOI:https://doi.org/10.1103/PhysRevLett.26.428

Authors & Affiliations

E. Müller-Hartmann^* and J. Zittartz^†

Department of Physics, University of California, San Diego, La Jolla, California 92037

^*On leave from the Institut für Theoretische Physik der Universität zu Köln, Köln, Germany.
^†Permanent address: Institut für Theoretische Physik der Universität zu Köln, Köln, Germany.