YBCO JOSEPHSON-JUNCTIONS ON BICRYSTALLINE NDGAO3 SUBSTRATES

被引：6

作者：

UNGER, R

SCHERER, TA

JUTZI, W

IVANOV, ZG

STEPANTSOV, EA

机构：

[1] UNIV KARLSRUHE,INST ELEKTROTECH GRUNDLAGEN INFORMAT,D-76187 KARLSRUHE,GERMANY

[2] CHALMERS UNIV TECHNOL,DEPT PHYS,S-41296 GOTHENBURG,SWEDEN

[3] RUSSIAN ACAD SCI,MOSCOW,RUSSIA

来源：

PHYSICA C | 1995年 / 241卷 / 3-4期

关键词：

D O I：

10.1016/0921-4534(94)02361-1

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

YBCO Josephson junctions on bicrystalline NdGaO3 substrates with a misorientation angle Theta = 22 degrees of the grain boundary have been fabricated with a current density of j(max) = 18 kA/cm(2) at T = 77 K. The dimension of the microbridge across the grain boundary was w = 4.8 mu m with a thickness t = 290 nm. A rather uniform current-density distribution along the grain boundary is deduced with a nearly Fraunhofer behavior of the magnetic-field dependence of the maximum critical current. An I(c)R(N) product of 70 mu V at T = 77 K has been achieved.

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收藏

页码：316 / 318

页数：3

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