CMT115

Shot noise in normal metal-d-wave superconducting junctions

• Author(s): Tomas Löfwander, Mikael Fogelström and J. A. Sauls
• Address: Department of Physics & Astronomy, Northwestern University, Evanston, IL 60208
• Date: April 23, 2003
• Journal: Physical Reivew B 68, 054504 (2003) [DOI] [PDF]

• Abstract:
  We present theoretical calculations and predictions for the shot noise in voltage biased junctions of d_{x²-y² 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 pairing channels.}
  
• Comment: 15 pages with 3 tables and 8 figures

• Eprint: [PDF] [arXiv]

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