Minigap in a SN junction with paramagnetic impurities

We study the effect of spin-flip scattering on the density of states in a long diffusive S-N junction with transparent interface. We calculate the critical value of the spin-flip scattering rate at which the minigap closes and give the dependence of the minigap on the spin-flip rate. For the system we consider, the minigap and the critical spin-flip rate have the scale of the Thouless energy, and not of the superconducting gap.


Published in:
Phys. Rev. B 72, 092501 (2005)
Year:
2005
Laboratories:




 Record created 2011-05-20, last modified 2018-03-17


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