Multiparticle tunnelling in diffusive superconducting junctions
Journal article, 2007

We formulate a theoretical framework to describe multiparticle current transport in planar superconducting tunnel junctions with diffusive electrodes. The approach is based on the direct solving of quasiclassical Keldysh-Green function equations for nonequilibrium superconductors, and consists of a combination of circuit theory analysis and improved perturbation expansion. The theory predicts a 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. © IOP Publishing Ltd.

Author

Eugene Bezuglyi

Chalmers, Microtechnology and Nanoscience (MC2)

Andrey Vasenko

Chalmers, Microtechnology and Nanoscience (MC2), Applied Quantum Physics

E.N. Bratus'

Institute for Low Temperature Physics and Engineering

Vitaly Shumeiko

Chalmers, Microtechnology and Nanoscience (MC2), Applied Quantum Physics

Göran Wendin

Chalmers, Microtechnology and Nanoscience (MC2), Applied Quantum Physics

Superconductor Science and Technology

0953-2048 (ISSN) 1361-6668 (eISSN)

Vol. 20 6 529-541

Subject Categories

Condensed Matter Physics

DOI

10.1088/0953-2048/20/6/008

More information

Created

10/7/2017