Minisubbands in electron excitation spectra of layered short-coherence-length superconductors

S. Shafranjuk, T. Yamashita

Research output: Contribution to journalArticlepeer-review

3 Scopus citations

Abstract

Quasiparticle excitation spectra of short-coherence-length layered superconductors ((Formula presented)) are considered as-suming a periodic alternation of the superconducting order parameter (Formula presented) versus the lateral coordinate (Formula presented) in the (Formula presented) direction. The found self-consistent solution suggests that the electron-hole Andreev scattering in such a periodic (Formula presented) causes the appearance of minisubbands in the electron spectrum of (Formula presented), in a "clean" limit manifested as periodic spikes in the density of electron states at energies (Formula presented) ((Formula presented) is the energy gap amplitude; (Formula presented) is a natural number).

Original languageEnglish (US)
Pages (from-to)15380-15387
Number of pages8
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume54
Issue number21
DOIs
StatePublished - 1996

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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