Anisotropy of the Josephson Critical Current between UPt3 and Nb

A. Sumiyama, S. Shibata, Y. Oda, N. Kimura, E. Yamamoto, Y. Haga, Y. O¯nuki

Research output: Contribution to journalArticlepeer-review

21 Citations (Scopus)

Abstract

Josephson critical current densities Jc between a single crystal UPt3 and an s-wave superconductor have been investigated for UPt3-Cu-Nb junctions and UPt3-Nb junctions. The anisotropic temperature dependence is observed at about the lower critical temperature T-c of UPt3; the increase in Jc with decreasing temperatures becomes fast below T-c for a current flow parallel to the crystallographic c axis and it becomes rather slow below T-c for a current flow parallel to the b axis. This anisotropy gives clear evidence that the Josephson effect reflects the anisotropic superconductivity of UPt3.

Original languageEnglish
Pages (from-to)5213-5216
Number of pages4
JournalPhysical review letters
Volume81
Issue number23
DOIs
Publication statusPublished - 1998

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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