HYSTERETIC, HIGH-TC JOSEPHSON-JUNCTIONS USING HETEROSTRUCTURE TRILAYER FILMS GROWN BY MOLECULAR-BEAM EPITAXY

被引:59
作者
VIRSHUP, GF
KLAUSMEIERBROWN, ME
BOZOVIC, I
ECKSTEIN, JN
机构
[1] Edward L. Ginzton Research Center, Varian Associates, Palo Alto
关键词
D O I
10.1063/1.107032
中图分类号
O59 [应用物理学];
学科分类号
摘要
Hysteretic Josephson junctions have been fabricated by growing c-axis oriented trilayer Bi2Sr2CaCu2O8/Bi2Sr2(Ca,Bi,Sr)7Cu8O20/Bi2Sr2CaCu2O8 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 (approximately 30 angstrom) barrier layer. The current-voltage response shows large, sharp Shapiro steps under microwave illumination.
引用
收藏
页码:2288 / 2290
页数:3
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