Minigap in a SN junction with paramagnetic impurities

Abstract

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.

4 pages, 2 figures

References in corpus (7)

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• Density of States below the Thouless Gap in a Mesoscopic SNS Junction
• Minigap in a long disordered SNS junction: analytical results
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• Conductance Anomalies for Normal-Metal-Insulator-Superconductor Contacts
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Cited by in corpus (10)

• Magnetic Interference Patterns and Vortices in Diffusive SNS junctions
• Density of states and supercurrent in diffusive SNS junctions: role of nonideal interfaces and spin-flip scattering
• Surface impedance and optimum surface resistance of a superconductor with imperfect surface
• Minigap in superconductor-ferromagnet junctions with inhomogeneous magnetization
• Josephson current in a superconductor -- ferromagnet -- superconductor junction with in-plane ferromagnetic domains
• Current-voltage characteristics of tunnel Josephson junctions with a ferromagnetic interlayer
• Effective spin-flip scattering in diffusive superconducting proximity systems with magnetic disorder
• Magnetic interference patterns in long disordered Josephson junctions
• Self-consistent evaluation of proximity and inverse proximity effects with pair-breaking in diffusive SN junctions
• Minigap suppression in S(N/F)S junctions