Dragging of normal component by the condensate in nonequilibrium superconductors
If a superconductor is brought out of the equilibrium state, then dissipative fluxes proportional to the superfluid velocity may arise. These fluxes can be regarded as the result of dragging of the normal component by the condensate. The heat flux is calculated for a moving condensate when the equilibrium is disturbed by a tunnel current in an N-S structure. A shift in the chemical potential takes place under the influence of the temperature gradient and the superfluid motion. The shift turns out to be proportional to the momentum relaxation time. The Onsager relation for the corresponding kinetic coefficients is established. A potential difference, the analog of the Nernst effect, is produced in a plate with a magnetic field parallel to the surface. The quasielectron distribution function is introduced to describe the nonequilibrium states. A stationary kinetic equation is obtained for superconductors with arbitrary impurity concentration and with spatial inhomogeneity. A stationary diffusion equation is derived for the ''dirty'' state.
- Research Organization:
- A. F. Ioffe Physicotechnical Institute, USSR Academy of Sciences
- OSTI ID:
- 6648718
- Journal Information:
- Sov. Phys. - JETP (Engl. Transl.); (United States), Journal Name: Sov. Phys. - JETP (Engl. Transl.); (United States) Vol. 51:6; ISSN SPHJA
- Country of Publication:
- United States
- Language:
- English
Similar Records
Nonequilibrium superconductor states in the case of ''narrow'' nonequilibrium sources
Nonequilibrium mesoscopic superconductors in a fluctuational regime.
Related Subjects
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
DISTRIBUTION FUNCTIONS
DRAG
EQUATIONS
FUNCTIONS
HEAT FLUX
KINETIC EQUATIONS
ONSAGER RELATIONS
RELAXATION TIME
SUPERCONDUCTORS
TEMPERATURE GRADIENTS
TUNNEL EFFECT