Nonequilibrium superconductivity in spin-polarized superconducting tunneling junctions
- Max-Planck-Institut fuer Physik Komplexer Systeme, Aussenstelle Stuttgart, Heisenbergstrasse 1, D-70569 Stuttgart (Germany)
- Max-Planck-Institut fuer Physik Komplexer Systeme, Bayreuther Strasse 40, D-01187 Dresden (Germany)
The presence of an applied magnetic field can lead to important effects as regards the nonequilibrium properties of a superconductor when spin-flip scattering processes are taken into account. Here we consider spin-flip transitions due to spin-orbit scattering of the quasiparticles by impurities, and introduce the kinetic equations governing the quasiparticle and phonon excitations. We solve the kinetic equations for the case of a superconducting film in a magnetic field driven out of equilibrium by quasiparticle injection. We consider also two identical phonon-coupled superconducting tunneling junctions and calculate the current-voltage characteristics as a function of the applied magnetic field and the spin-orbit scattering rate. Our results provide a natural and simple interpretation of a recently reported experiment. {copyright} {ital 1997} {ital The American Physical Society}
- OSTI ID:
- 528082
- Journal Information:
- Physical Review, B: Condensed Matter, Journal Name: Physical Review, B: Condensed Matter Journal Issue: 5 Vol. 56; ISSN PRBMDO; ISSN 0163-1829
- Country of Publication:
- United States
- Language:
- English
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