Impurity band in clean superconducting weak links
Abstract
Weak impurity scattering produces a narrow band with a finite density of states near the phase difference φ=π in the midgap energy spectrum of a macroscopic superconducting weak link. The equivalent distribution of transmission coefficients of various conducting quantum channels is found.
- Publication:
-
Physical Review B
- Pub Date:
- April 2002
- DOI:
- 10.1103/PhysRevB.65.132503
- arXiv:
- arXiv:cond-mat/0106199
- Bibcode:
- 2002PhRvB..65m2503K
- Keywords:
-
- 74.80.Fp;
- 73.23.-b;
- 73.63.Rt;
- Electronic transport in mesoscopic systems;
- Nanoscale contacts;
- Condensed Matter - Superconductivity;
- Condensed Matter - Mesoscale and Nanoscale Physics
- E-Print:
- 4 pages, 4 figures, changed content