Charge transport across a mesoscopic superconductor normal metal junction: coherence and decoherence effects

M. Belogolovskii, Alexandre Avraamovitch Golubov, M. Grajcar, M. Yu Kupriyanov, P. Seidel

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We present a simple scattering approach to the charge transport across a realistic superconductor–normal injector interface of a finite transmittance that is modeled by a double-barrier mesoscopic junction. For a d-wave pairing symmetry, our calculations combine a fully quantum-mechanical scattering formalism with a self-consistent estimation of Andreev reflection coefficients within the quasi-classical Eilenberger equation scheme for a free specular superconducting surface. Numerical simulations confirm experimental criteria of Cucolo for the unconventional superconducting origin of conductance anomalies in high-temperature oxides. A discussion of dephasing effects caused by inelastic scattering processes in the interlayer and their impact on the conductance spectra is given.
Original languageUndefined
Pages (from-to)1592-1595
Number of pages4
JournalPhysica C
Issue numberPart 2
Publication statusPublished - 2001


  • Dephasing
  • Phase-coherent transport
  • IR-74535
  • d-wave superconductors
  • METIS-201243
  • Superconducting heterostructures

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