Theory for resistive transition in cuprate oxides multilayers

T. Koyama, M. Tachiki

Research output: Contribution to journalArticlepeer-review

16 Citations (Scopus)

Abstract

We propose a simple theory to explain the broad resistive transition observed in the cuprate oxides multilayers, PrBCO/YBCO/ PrBCO. In this model the proximity-induced superconductivity is assumed in the semiconducting PrBCO films. The transition temperature is reduced as the thickness of the YBCO film decreases. When the YBCO film has a thickness of a few unit cells the superconducting fluctuations are greatly enhanced. We calculate the fluctuation-enhanced conductance of this system, using the "renormalized Gaussian fluctuation approximation". The calculated result for temperature and the YBCO-film-thickness dependence of the resistance is in good agreement with experiments.

Original languageEnglish
Pages (from-to)163-170
Number of pages8
JournalPhysica C: Superconductivity and its applications
Volume193
Issue number1-2
DOIs
Publication statusPublished - 1992 Apr 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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