Multiparticle tunneling in diffusive superconducting junctions
arXiv:cond-mat/0701174 · doi:10.1088/0953-2048/20/6/008
Abstract
We formulate a theoretical framework to describe multiparticle current transport in planar superconducting tunnel junctions with diffusive electrodes. The approach is based on direct solving of quasiclassical Keldysh-Green function equations for nonequilibrium superconductors, and consists of a combination of a circuit theory analysis and improved perturbation expansion. The theory predicts much greater scaling parameter for the subharmonic gap structure of the tunnel current in diffusive junctions compared to the one in ballistic junctions and mesoscopic constrictions with the same barrier transparency.
18 pages, 6 figures, to be published in Supercond. Sci. Techn
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Cited by in corpus (5)
- Tunneling conductance and local density of states in tight-binding junctions
- Electron cooling by diffusive normal metal - superconductor tunnel junctions
- Relaxation of Nonequilibrium Quasiparticles in Mesoscopic Size Superconductors
- Current-voltage characteristics of asymmetric double-barrier Josephson junctions
- Nonequilibrium and relaxation effects in tunnel superconducting junctions