FABRICATION OF TLCABACUO STEP-EDGE JOSEPHSON-JUNCTIONS WITH HYSTERETIC BEHAVIOR

被引：27

作者：

MARTENS, JS ^{[1
]}

HIETALA, VM ^{[1
]}

ZIPPERIAN, TE ^{[1
]}

VAWTER, GA ^{[1
]}

GINLEY, DS ^{[1
]}

TIGGES, CP ^{[1
]}

PLUT, TA ^{[1
]}

HOHENWARTER, GKG ^{[1
]}

机构：

[1] UNIV WISCONSIN,DEPT ELECT & COMP ENGN,MADISON,WI 53706

来源：

APPLIED PHYSICS LETTERS | 1992年 / 60卷 / 08期

关键词：

D O I：

10.1063/1.106506

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

One way to create hysteretic Josephson junctions from the currently available nonhysteretic high temperature superconducting junctions is to artificially add capacitance. We have adapted a multilayer technique for artificial capacitance addition/grain boundary modification to produce TlCaBaCuO step-edge junctions exhibiting large amounts of hysteresis at 77 K. A gaplike structure is present at 32-36 mV that has a temperature dependence that does not contradict that predicted by the Bardeen-Cooper-Schrieffer theory. In addition, the junctions show fast switching times, less than a fixture limited 20 ps, and Fraunhofer-like dependence of critical current on magnetic field.

引用

页码：1013 / 1015

页数：3

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