Electromagnetic absorption of light in superconducting Kondo alloys and superconducting alloys with strong electron--magnetic-impurity interaction

Journal Article · Tue Jan 01 04:00:00 EST 1980 · Phys. Rev., B: Condens. Matter; (United States)

DOI:https://doi.org/10.1103/PhysRevB.21.138· OSTI ID:5775412

Cuden, C B

Electromagnetic absorption of light in superconducting Kondo alloys and in superconducting alloys with strong electron--magnetic-impurity interaction is discussed without recourse to the quasiparticle approximation. The electromagnetic (em) absorption of light defined in terms of Shiba-Rusinov equilibrium one-particle Green's functions is examined in the limit of small momentum transfer (London limit) and in the Eliashberg approximation of neglecting the momentum dependence of the electronic self-energy. For the specific case of the Fe-In alloy numerical calculations have been made for the ratio of em absorption in the superconducting and normal states as a function of reduced frequency and temperature for different impurity concentrations.

• Research Organization: Universidade Federal da Bahia, Departamento de Fisica, Salvador, Bahia, Brasil
• OSTI ID: 5775412
• Journal Information: Phys. Rev., B: Condens. Matter; (United States), Journal Name: Phys. Rev., B: Condens. Matter; (United States) Vol. 21:1; ISSN PRBMD
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360104* -- Metals & Alloys-- Physical Properties
656102 -- Solid State Physics-- Superconductivity-- Acoustic
Electronic
Magnetic
Optical
& Thermal Phenomena-- (-1987)
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ABSORPTIVITY
ALLOYS
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
FUNCTIONS
GREEN FUNCTION
IMPURITIES
INDIUM ALLOYS
IRON ALLOYS
KONDO EFFECT
OPTICAL PROPERTIES
PHYSICAL PROPERTIES
SUPERCONDUCTIVITY