HYSTERETIC JOSEPHSON-JUNCTION BEHAVIOR OF BA1-XKXBIO3 GRAIN-BOUNDARY JUNCTIONS USING SRTIO3 BICRYSTAL SUBSTRATES

被引：8

作者：

TAKAMI, T ^{[1
]}

KURODA, K ^{[1
]}

KATAOKA, M ^{[1
]}

WADA, Y ^{[1
]}

TERADA, K ^{[1
]}

TANIMURA, J ^{[1
]}

KOJIMA, K ^{[1
]}

NUNOSHITA, M ^{[1
]}

机构：

[1] MITSUBISHI ELECTR CORP, MAT & ELECTR DEVICES LAB, AMAGASAKI, HYOGO 661, JAPAN

来源：

JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS & EXPRESS LETTERS | 1994年 / 33卷 / 7B期

关键词：

SUPERCONDUCTOR; GRAIN BOUNDARY; TUNNEL JUNCTION; SRTIO3; BA(1-X)K(X)BIO3;

D O I：

10.1143/JJAP.33.L1004

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We have fabricated Ba1-xKxBiO3 artificial grain boundary junctions with low resistance on a SrTiO3 bicrystal substrate. These junctions show hysteretic junction behavior with a clear superconducting energy gap structure and Josephson current. The area resistance was low; it ranged from 5.2 x 10(-8) to 2.0 x 10(-5) OMEGA.CM2. The I(c)R(n) product of the 20-mum-wide junction was 3.5 mV at 4.2 K. The gap voltage increased as the heater temperature increased and reached about 8 mV. A weak magnetic field applied normal to the substrate induced a Fraunhofer-type pattern.

引用

页码：L1004 / L1006

页数：3

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