Planar-type MgB2 SQUIDs utilizing a multilayer process

被引：13

作者：

Cunnane, Daniel ^{[1
]}

Galan, Elias ^{[1
]}

Chen, Ke ^{[1
]}

Xi, X. X. ^{[1
]}

机构：

[1] Temple Univ, Dept Phys, Philadelphia, PA 19122 USA

来源：

APPLIED PHYSICS LETTERS | 2013年 / 103卷 / 21期

基金：

美国国家科学基金会;

关键词：

TUNNEL-JUNCTIONS; THIN-FILMS; NANOBRIDGES;

D O I：

10.1063/1.4833022

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We report planar-type MgB2 DC SQUIDs fabricated using a multilayer process. The SQUIDs employed sandwich-type MgB2/MgO/MgB2 Josephson junctions and a MgB2 wiring layer. The SQUIDs showed large voltage modulation above 500 mu V at 15K and operated in a broad temperature range from 15 to 37K with a transfer function as high as 2.3 mV/Phi(0). The minimum SQUID noise was measured at 26K in a cryocooler, yielding a white noise around 10 mu Phi(0)/Hz(1/2) and 1/f corner frequency near 10 Hz. The result demonstrates great promise of MgB2 SQUIDs for practical applications. (C) 2013 AIP Publishing LLC.

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页数：3

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