High IcRn Products and Hysteretic Behavior of YBCO/Au/YBCO Josephson Junctions

被引：4

作者：

Dong, Z. W. ^{[1
]}

Hadley, P. ^{[1
]}

Mooij, J. E. ^{[1
]}

机构：

[1] Delft Univ Technol, Dept Appl Phys, NL-2628 CJ Delft, Netherlands

来源：

PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS | 1994年 / 235-40卷

关键词：

D O I：

10.1016/0921-4534(94)91148-7

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We have developed a method for eliminating the excess conductance in YBCO/Au/YBCO step edge junctions. This fabrication procedure results in IcRn products of 7.8 mV at 4.2 K and 0.18 mV at 77 K. The dc-SQUIDs showed a flux noise of 3 x 10(-5) Phi(o)/root Hz at 77 K with a 1/f noise knee at 1 Hz. Underdamped junctions can also be made with this fabrication technique. This may allow for the fabrication of relaxation oscillation SQUIDs operating at 77 K.

引用

页码：3243 / 3244

页数：2

共 5 条

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[3] Dong Z. W., 1993, EUCAS 93 OCT 4 8 GOT, V2, P1215
[4] INSITU NOBLE-METAL YBA2CU3O7 THIN-FILM CONTACTS
EKIN, JW
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[J]. APPLIED PHYSICS LETTERS, 1993, 62 (04) : 369 - 371
[5] Wunderlich R., 1993, EUCAS 93 OCT 4 8 GOT, V2, P1351

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