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Influence of impurity scattering on the critical temperature of superconductors with a partial gap in the electron spectrum

Journal Article · · J. Low Temp. Phys.; (United States)
DOI:https://doi.org/10.1007/BF00683230· OSTI ID:5882601
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The influence of the scattering potential of nonmagnetic and magnetic impurities on the critical superconducting transition temperature T/sub c/ is considered for superconductors with either a completely or partially dielectric electron spectrum. It is shown that T/sub c/ rises with increasing concentration of nonmagnetic impurities, i.e., the Anderson theorem is violated in such systems. Magnetic impurity scattering lowers T/sub c/. However, this reduction is weakened compared to usual superconductors, due to the presence of the dielectric gap on the Fermi surface.
Research Organization:
Institute of Physics, Academy of Sciences of the Ukrainian SSR, Kiev, USSR
OSTI ID:
5882601
Journal Information:
J. Low Temp. Phys.; (United States), Journal Name: J. Low Temp. Phys.; (United States) Vol. 51:5; ISSN JLTPA
Country of Publication:
United States
Language:
English

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Related Subjects

656101* -- Solid State Physics-- Superconductivity-- General Theory-- (-1987)
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ABRIKOSOV THEORY
BAND THEORY
BETA-W LATTICES
CRYSTAL LATTICES
CRYSTAL STRUCTURE
ELASTIC SCATTERING
ELECTRON-HOLE COUPLING
ELECTRONIC STRUCTURE
ELEMENTS
ENERGY GAP
EQUATIONS
FUNCTIONS
GREEN FUNCTION
HAMILTONIANS
IMPURITIES
INTEGRAL EQUATIONS
MATHEMATICAL OPERATORS
PHYSICAL PROPERTIES
POTENTIAL SCATTERING
QUANTUM OPERATORS
SCATTERING
SEMIMETALS
SUPERCONDUCTORS
THERMODYNAMIC PROPERTIES
TRANSITION TEMPERATURE