Electrical properties of sn contacts with cleaved oxide superconductor films

I. Takeuchi, J. S. Tsai, H. Tsuge, N. Matsukura, S. Miura, T. Yoshitake, Y. Kojima, S. Matsui

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)

Abstract

We have studied the feasibility of making sharp and clean electrical contacts with high temperature superconductors by cleaving single crystal Y-Ba-Cu-O and Bi-Sr-Ca-Cu-O films in the stream of evaporated noble metals forming SN contacts at the revealed cross-sectional edge surfaces of the films. With this technique, we have consistently obtained contact resistances in the order of 10∝9 to 10∝8 Ωcm2. From a structure with an oxide/Au/oxide configuration, the interface resistance was found to show a flat temperature dependence below Tc, Material dependence and anisotropy were observed in the contact resistance.

Original languageEnglish
Pages (from-to)1626-1629
Number of pages4
JournalIEEE Transactions on Magnetics
Volume27
Issue number2
DOIs
Publication statusPublished - 1991 Mar
Externally publishedYes

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering

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