Singular length dependence of critical current in superconductor/normal-metal/superconductor bridges
Alex Levchenko, Alex Kamenev, Leonid Glazman
DOI 10.1103/PhysRevB.74.212509 · Physical Review B
Active bibliographic source — not scientific approval
Bibliographic access preserves source history; it does not approve extracted materials or validate reported claims. Review warnings on each occurrence separately.
Abstract
We examine the dependence of the critical Josephson current on the length L of the normal bridge N between two bulk superconductors. This dependence turns out to be nonanalytic at small L. The nonanalyticity originates from the contribution of extended quasiparticle states with energies well above the superconducting gap. This should be contrasted with the more familiar contribution to the Josephson current coming from Andreev bound states localized in the normal region at energies below the gap.
Similar papers
Singular length dependence of critical current in SNS bridges
similarity 0.93Alex Levchenko et al. · 2006 · arXiv:cond-mat/0601177
Source status unknown — claims are unverified
Long-range Josephson effect in mesoscopic T-shaped superconductor–normal-metal–superconductor junctions
similarity 0.91P. Samuelsson et al.
Source status unknown — claims are unverified
Magnetic-field dependence of the critical current in long Josephson junctions
similarity 0.90S. Pagano et al.
Source status unknown — claims are unverified
Long-range statistical fluctuations of the crossed Josephson current
similarity 0.90R. Mélin
Source status unknown — claims are unverified
Josephson junctions in thin and narrow rectangular superconducting strips
similarity 0.90John R. Clem
Source status unknown — claims are unverified
Josephson currents through spin-active interfaces
similarity 0.89Mikael Fogelström
Source status unknown — claims are unverified