Nonequilibrium superconductivity in spin-polarized superconducting tunneling junctions

Journal Article · Fri Aug 01 04:00:00 EDT 1997 · Physical Review, B: Condensed Matter

DOI:https://doi.org/10.1103/PhysRevB.56.2751· OSTI ID:528082

Grimaldi, C ^[1]; Fulde, P ^[2]

---

1. Max-Planck-Institut fuer Physik Komplexer Systeme, Aussenstelle Stuttgart, Heisenbergstrasse 1, D-70569 Stuttgart (Germany)
2. 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

Related Subjects

66 PHYSICS
IMPURITIES
PHONONS
SPIN
SUPERCONDUCTING FILMS
SUPERCONDUCTIVITY
TUNNELING