Abstract
Current-voltage characteristics of superconductor-normal-metal- superconductor junctions are calculated. Multiple Andreev reflections and the effect of normal elastic scattering at the superconductor-normal-metal interfaces are considered. The normal reflections of quasiparticles appear due to the mismatches in Fermi velocities and effective masses of superconductors and weak link. The wave-packet solution of nonequilibrium time-dependent Bogoliubov de Gennes equations was obtained with the help of the boundary conditions on the wave function of the quasiparticle. At voltages of interest for multiple Andreev reflections (eV<2), the result is applied to the rather thick weak links where the density of bound Andreev states is small.
| Original language | English |
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| Pages (from-to) | 15882-15889 |
| Number of pages | 8 |
| Journal | Physical Review B |
| Volume | 50 |
| Issue number | 21 |
| DOIs | |
| State | Published - 1 Jan 1994 |
ASJC Scopus subject areas
- Condensed Matter Physics