Nonlinearity in NS transport: scattering matrix approach

Physics – Condensed Matter – Mesoscale and Nanoscale Physics

Scientific paper

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

26 pages, 4 Postscript figures, Latex, to be published in Phys. Rev. B

Scientific paper

10.1103/PhysRevB.55.3146

A general formula for the current through a disordered normal--superconducting junction is derived, which is valid at finite temperature and includes the full voltage dependence. The result depends on a multichannel scattering matrix, which describes elastic scattering in the normal region, and accounts for the Andreev scattering at the NS interface. The symmetry of the current with respect to sign reversal in the subgap regime is discussed. The Andreev approximation is used to derive a spectral conductance formula, which applies to voltages both below and above the gap. In a case study the spectral conductance formula is applied to the problem of an NINIS double barrier junction.

No associations

LandOfFree

Say what you really think

Search LandOfFree.com for scientists and scientific papers. Rate them and share your experience with other people.

Rating

Nonlinearity in NS transport: scattering matrix approach does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Nonlinearity in NS transport: scattering matrix approach, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Nonlinearity in NS transport: scattering matrix approach will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFWR-SCP-O-129851

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.