PROPERTIES OF JOSEPHSON EDGE TYPE JUNCTIONS PREPARED WITH BR-ETHANOL ETCHING

被引：7

作者：

FALEY, MI ^{[1
]}

POPPE, U ^{[1
]}

JIAN, CL ^{[1
]}

GLYANTSEV, VN ^{[1
]}

SIEGEL, M ^{[1
]}

URBAN, K ^{[1
]}

机构：

[1] FORSCHUNGSZENTRUM JULICH, FORSCHUNGSZENTRUM, INST SCHICHT & IONENTECH, D-52425 JULICH, GERMANY

来源：

PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS | 1994年 / 235卷

关键词：

D O I：

10.1016/0921-4534(94)91519-9

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The Josephson junctions were prepared on the edges of c-axis oriented YBa2Cu3O7 thin films structured by chemical etching in a Br-ethanol solution. TEM studies demonstrate epitaxial c-axis oriented growth of all layers. The coherence length of the PrBa2Cu3O7 barrier is estimated to be about 4 nm. The normal state resistance of the junctions has a strong metallic temperature dependence. partial derivative V/partial derivative Phi above 50 mu V/Phi(O) at 77 K was obtained for the dc-SQUIDs prepared on the basis of these junctions with the loop inductance about 200 pH. External magnetic fields up to several Gauss does not affect the amplitude of the flux-voltage characteristic of the dc-SQUIDs. Aging or effects due to thermal cycling an the properties of the junctions and SQUIDs were not observed.

引用

页码：591 / 592

页数：2

共 5 条

[1] JOSEPHSON-JUNCTIONS, INTERCONNECTS, AND CROSSOVERS ON CHEMICALLY ETCHED EDGES OF YBA2CU3O7-X [J].

FALEY, MI ;

POPPE, U ;

SOLTNER, H ;

JIA, CL ;

SIEGEL, M ;

URBAN, K .

APPLIED PHYSICS LETTERS, 1993, 63 (15) :2138-2140

[2]

FALEY MI, 1993, P EUROPEAN C APPLIED

[3]

KUNKEL G, 1994, JAN P SPIES INT S LO

[4] LOW-RESISTIVITY EPITAXIAL YBA2CU3O7 THIN-FILMS WITH IMPROVED MICROSTRUCTURE AND REDUCED MICROWAVE LOSSES [J].

POPPE, U ;

KLEIN, N ;

DAHNE, U ;

SOLTNER, H ;

JIA, CL ;

KABIUS, B ;

URBAN, K ;

LUBIG, A ;

SCHMIDT, K ;

HENSEN, S ;

ORBACH, S ;

MULLER, G ;

PIEL, H .

JOURNAL OF APPLIED PHYSICS, 1992, 71 (11) :5572-5578

[5] TRANSPORT CHARACTERISTICS OF 1-2-3 TYPE OXIDE S-N-S JUNCTIONS [J].

TARUTANI, Y ;

FUKAZAWA, T ;

KABASAWA, U ;

TSUKAMOTO, A ;

HIRATANI, M ;

OKAMOTO, M ;

TAKAGI, K .

APPLIED SUPERCONDUCTIVITY, 1993, 1 (10-12) :1645-1651

← 1 →