Sensitive dc-SQUIDs and magnetometers using step-edge junctions

被引：0
|
作者：
Nie, J.C. [1 ]
Chen, L. [1 ]
Yang, T. [1 ]
Huang, M.Q. [1 ]
Wu, P.J. [1 ]
Liu, G.R. [1 ]
Li, L. [1 ]
机构：
[1] Chinese Acad of Sciences, Beijing, China
来源：
Physica C: Superconductivity and its Applications | 1997年 / 282-287卷 / pt 4期
关键词：
Current voltage characteristics - Grain boundaries - Lanthanum compounds - Magnetic fields - Magnetometers - Oxide superconductors - Substrates - Yttrium compounds;
D O I：
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学科分类号：
摘要：
Superconducting quantum interference devices (SQUIDs) using YBa2Cu3O7, step-edge grain boundary junctions on LaAlO3 substrates were fabricated. The I-V and V-φ characteristics of these step-junction dc-SQUIDs were studied. At 77 K, a square washer configuration with inductance Ls = 150 pH yields flux noise of about 5.08×10-5 φ0/√Hz, corresponding to a magnetic field and energy resolutions were 270 fT/√Hz and 3.68×10-29 J/Hz respectively above 100 Hz.
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页码：2477 / 2478
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