Transition temperature of proximity-effect sandwich systems containing Kondo impurities

Journal Article · Fri Oct 01 04:00:00 EDT 1982 · J. Low Temp. Phys.; (United States)

DOI:https://doi.org/10.1007/BF00681760· OSTI ID:6417527

Yoksan, S

The superconducting proximity effect between thin films of a superconductor and a Kondo alloy is analyzed, using the McMillan tunneling model and the theory of Matsura, Ichinose, and Nagaoka (MIN). The transition temperature is derived and shown to recover the already known limiting cases the BCS, McMillian, Mohabir-Nagi, Kaiser, and MIN results. An expression for the effective pair-breaking parameter, different from that of Mueller-Hartmann and Zittartz, is obtained and found to contain the terms arising from the impurity effect and the pair-weakening Coulomb repulsion effect.

• Research Organization: Department of Physics, Srinakharinwirot University, Prasarnmitr, Bangkok, Thailand
• OSTI ID: 6417527
• Journal Information: J. Low Temp. Phys.; (United States), Journal Name: J. Low Temp. Phys.; (United States) Vol. 49:1; ISSN JLTPA
• Country of Publication: United States
• Language: English

Related Subjects

656101* -- Solid State Physics-- Superconductivity-- General Theory-- (-1987)
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
COOPER PAIRS
FILMS
IMPURITIES
JUNCTIONS
ORDER PARAMETERS
PHYSICAL PROPERTIES
PROXIMITY EFFECT
SUPERCONDUCTING FILMS
SUPERCONDUCTING JUNCTIONS
THERMODYNAMIC PROPERTIES
TRANSITION TEMPERATURE