LOW-LEAKAGE THIN-FILM SUPERCONDUCTOR-INSULATOR-NORMAL METAL TUNNEL-JUNCTIONS ON COEVAPORATED BA1-XRBXBIO3 AND RF-SPUTTERED BA1-XKXBIO3

被引：20

作者：

HOU, CJ

FINK, RL

HILBERT, C

KROGER, H

机构：

[1] Computer Physics Laboratory, Microelectronics and Computer Technology Corporation (MCC), Austin

来源：

APPLIED PHYSICS LETTERS | 1992年 / 60卷 / 10期

关键词：

D O I：

10.1063/1.107340

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The oxide superconductors Ba1-xKxBiO3 and Ba1-xRbxBiO3 exhibit ideal BCS-like characteristics with T(c) approximately 30 K. We report the deposition of thin films with zero-resistance temperatures up to 25 K and transition widths less than 1 K by thermal coevaporation and rf sputtering. Thin-film S-I-N tunnel junctions fabricated by evaporating Ag or Au onto a native barrier exhibit low leakage over 1 mm2 junctions and near-ideal BCS-like behavior with a value of 2-DELTA(0)/k(B)T(co) = 3.5 +/- 0.2.

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页码：1262 / 1264

页数：3

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