Theory for the upper critical field in superconducting multilayers with interface irregularities

Tomio Koyama, M. Tachiki

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)

Abstract

The upper critical field in superconducting multilayers, which are composed of two kinds of superconducting layers with different diffusion constants and contain interface irregularities, investigated in the direction parallel to the layers. The interface irregularities enhance the upper critical field. The crossover temperature at which the superconducting nucleation position moves from one layer to another is increased as the effect of the irregularities becomes strong. As a result, the two-dimensional region where the nucleation position of the superconducting order is inside a layer with the larger diffusion constant is greatly reduced by the irregularities.

Original languageEnglish
Pages (from-to)509-517
Number of pages9
JournalPhysica C: Superconductivity and its applications
Volume210
Issue number3-4
DOIs
Publication statusPublished - 1993 Jun 1

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering

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