Tunneling conductance for superconducting alloys with 3d magnetic impurities

Journal Article · Thu Apr 01 04:00:00 EST 1976 · Phys. Rev., B, v. 13, no. 7, pp. 2895-2897

OSTI ID:4015271

Ginsberg, D M

It is shown that the tunneling conductance curves of Woolf and Reif for quench-condensed In-Fe alloy films do not agree with values which are calculated from the theory of Shiba and Rusinov, which is supposed to describe magnetic impurities that interact strongly with the conduction electrons. Possible reasons for the discrepancy are presented. It is also suggested that the theory should be modified to take strong electron-phonon coupling into account in relating the pair-breaking parameter to the impurity concentration for Pb-Mn alloy films. This would not affect the good agreement between the observed tunneling curves for Pb-Mn films and the theory, which Chaba and Nagi have found previously. (AIP)

• Research Organization: Physics Department and Materials Research Laboratory, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801
• NSA Number: NSA-33-031623
• OSTI ID: 4015271
• Journal Information: Phys. Rev., B, v. 13, no. 7, pp. 2895-2897, Journal Name: Phys. Rev., B, v. 13, no. 7, pp. 2895-2897; ISSN PLRBA
• Country of Publication: United States
• Language: English

Related Subjects

*SUPERCONDUCTING FILMS-- TUNNEL EFFECT
643901*
ALLOYS INDIUM ALLOYS-- IRON ALLOYS
D STATES-- IMPURITIES-- MAGNETIC MATERIALS
LEAD ALLOYS-- MANGANESE ALLOYS
N50230 --Metals
Ceramics
& Other Materials--Metals & Alloys--Properties
Structure & Phase Studies
N66200* --Physics (Low Temperature)--Superconductivity