Hysteretic, high Tc Josephson junctions using heterostructure trilayer films grown by molecular beam epitaxy

G. F. Virshup, M. E. Klausmeier-Brown, I. Bozovic, J. N. Eckstein

Research output: Contribution to journalArticlepeer-review

Abstract

Hysteretic Josephson junctions have been fabricated by growing c-axis oriented trilayer Bi2Sr2CaCu2O 8/Bi2Sr2(Ca,Bi, Sr)7Cu 8O20/Bi2Sr2CaCu2O 8 single-crystal thin films and patterning them into devices. To our knowledge, these are the first cuprate superconductor junctions to exhibit current-voltage characteristics with substantial hysteresis. Current flow in the devices is in the vertical (c axis) direction, through an ultrathin (∼30 Å) barrier layer. The current-voltage response shows large, sharp Shapiro steps under microwave illumination.

Original languageEnglish (US)
Pages (from-to)2288-2290
Number of pages3
JournalApplied Physics Letters
Volume60
Issue number18
DOIs
StatePublished - 1992
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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