Shot noise in normal metal-d-wave superconducting junctions
Tomas Löfwander, Mikael Fogelström and J. A. Sauls
- Address: Department of Physics & Astronomy, Northwestern University, Evanston, IL 60208
- Date: April 23, 2003
Physical Reivew B 68, 054504 (2003)
We present theoretical calculations and predictions for the shot noise in voltage
biased junctions of
superconductors and normal metal counter-electrodes.
In the clean limit for the d-wave superconductor the shot noise vanishes at zero
voltage because of resonant Andreev reflection by zero-energy surface bound states.
We examine the sensitivity of this resonance to impurity scattering. We report
theoretical results for the magnetic field dependence of the shot noise, as well
the fingerprints of subdominant s- and dxy
- Comment: 15 pages with 3 tables and 8 figures