Nonequilibrium superconductor states in the case of ''narrow'' nonequilibrium sources

Journal Article · Thu May 01 04:00:00 EDT 1980 · Sov. J. Low Temp. Phys. (Engl. Transl.); (United States)

OSTI ID:6691992

Kirichenko, I K; Novikov, V E; Seminozhenko, V P; Shestopalov, V L

Stationary nonequilibrium states of superconductors are examined when nonequilibrium is caused by the effect of a microwave electromagnetic field of frequency ..cap omega..>2..delta.. as well as tunnel injection of excitations in a S--I--S contact at the voltage V>2..delta../e (..delta.. is the magnitude of the superconductor energy gap). Solutions of the kinetic equations for the nonequilibrium quasiparticle distribution function f/sub epsilon/ are obtained by numerical methods. Cases when an analytic solution is impossible (strong nonequilibrium) are examined and analyzed in detail. The spectral dependences of such quantities as ultrasound attenuation in a nonequilibrium superconductor and generation of ''2..delta.. phonons'' are investigated. The self-blocking effect of the tunnel current in a nonsymmetric S/sub 1/--I--S/sub 2/ tunnel contact is examined.

• Research Organization: Physicotechnical Institute of Low Temperatures, Academy of Sciences of the Ukrainian SSR, Khar'kov
• OSTI ID: 6691992
• Journal Information: Sov. J. Low Temp. Phys. (Engl. Transl.); (United States), Journal Name: Sov. J. Low Temp. Phys. (Engl. Transl.); (United States) Vol. 6:5; ISSN SJLPD
• Country of Publication: United States
• Language: English

Related Subjects

656100* -- Condensed Matter Physics-- Superconductivity
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ATTENUATION
DISTRIBUTION FUNCTIONS
ELECTROMAGNETIC RADIATION
ELECTRON-PHONON COUPLING
ENERGY GAP
ENERGY-LEVEL TRANSITIONS
EQUATIONS
EXCITATION
FUNCTIONS
JUNCTIONS
KINETIC EQUATIONS
MICROWAVE RADIATION
NUMERICAL SOLUTION
RADIATIONS
SOUND WAVES
SUPERCONDUCTING JUNCTIONS
SUPERCONDUCTORS
TUNNEL EFFECT
ULTRASONIC WAVES