Abstract
We have generalized the scattering-matrix theory of multiple Andreev reflections in mesoscopic Josephson junctions to the multiple-mode case, and applied it to short superconductor-normal-metal-superconductor (SNS) junctions with diffusive electron transport. Both the dc and ac current-voltage characteristics are analyzed for a wide range of bias voltages (Formula presented). For voltages smaller than the supeconducting gap the dc differential conductance of the SNS junction is predicted to diverge as (Formula presented).
| Original language | English |
|---|---|
| Pages (from-to) | R8518-R8521 |
| Journal | Physical Review B - Condensed Matter and Materials Physics |
| Volume | 56 |
| Issue number | 14 |
| DOIs | |
| State | Published - 1997 |
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