Effect of impurity scattering on the critical temperature of superconductors with partial dielectrization of the electron spectrum

Journal Article · Tue Feb 01 04:00:00 EST 1983 · Sov. Phys. - JETP (Engl. Transl.); (United States)

OSTI ID:5453895

Gabovich, A M; Shpigel', A S

The effect of the scattering potential of nonmagnetic or magnetic impurities on the critical superconducting temperature T/sub c/ is considered for superconductors with partial or total dielectrization of the electron spectrum. It is shown that T/sub c/ increases with increase of the nonmagnetic impurity density, i.e., the Anderson theorem does not hold for such systems. Scattering by magnetic impurities lowers T/sub c/. The decrease, however, is weaker than in ordinary superconductors, owing to the presence of a dielectric gap ..sigma.. on the Fermi surface.

• Research Organization: Institute of Metal Physics, Ukrainian Academy of Science
• OSTI ID: 5453895
• Journal Information: Sov. Phys. - JETP (Engl. Transl.); (United States), Journal Name: Sov. Phys. - JETP (Engl. Transl.); (United States) Vol. 57:2; ISSN SPHJA
• Country of Publication: United States
• Language: English

Related Subjects

656102* -- Solid State Physics-- Superconductivity-- Acoustic
Electronic
Magnetic
Optical
& Thermal Phenomena-- (-1987)
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
DIELECTRIC PROPERTIES
ELECTRICAL PROPERTIES
ELECTRON SPECTRA
ENERGY LEVELS
FERMI LEVEL
IMPURITIES
PHYSICAL PROPERTIES
SCATTERING
SPECTRA
SUPERCONDUCTORS
THERMODYNAMIC PROPERTIES
TRANSITION TEMPERATURE