Low-noise YBa2Cu3O7 dc-SQUIDs and magnetometers using step-edge junctions

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	Low-noise YBa2Cu3O7 dc-SQUIDs and magnetometers using step-edge junctions
	Nie, JC ; Chen, L ; Yang, T ; Huang, MQ ; Qu, PJ ; Liu, GR ; Li, L
刊名	CHINESE PHYSICS LETTERS
	1997
卷号	14 期号:3 页码:233
关键词	JOSEPHSON-JUNCTIONS
ISSN号	0256-307X
通讯作者	Nie, JC: CHINESE ACAD SCI,INST PHYS,NALT LAB SUPERCONDUCT,POB 603,BEIJING 100080,PEOPLES R CHINA.
中文摘要	Superconducting quantum interference devices (SQUIDs) using YBa2Cu3O7 step-edge grain boundary junctions on LaAlO3 substrates were fabricated. The I-V and V-Phi characteristics of these step-junction dc-SQUIDs were studied. A modulation voltage exceeding 16 mu V was attained with L-s = 60 pH at 77 K. At 77 K, a square washer configuration with inductance L-s = 150 pH yields flux noise of abo ut 5.08 x 10(-5) phi(0)/root Hz frequencies above 100 Hz, increasing to 1.1 x 10(-4) phi(0)/root Hz below 1 Hz. The corresponding magnetic field and energy resolution were 270 fT/root Hz and 3.68 x 10(-29) J/Hz respectively, above 100 Hz, and increasing to 710 fT/root Hz and 1.8 x 10(-28) J/Hz over a signal frequency range to below 1 Hz.
收录类别	SCI
语种	英语
公开日期	2013-09-18
内容类型	期刊论文
源URL	[http://ir.iphy.ac.cn/handle/311004/41044]
专题	物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文
推荐引用方式 GB/T 7714	Nie, JC,Chen, L,Yang, T,et al. Low-noise YBa2Cu3O7 dc-SQUIDs and magnetometers using step-edge junctions[J]. CHINESE PHYSICS LETTERS,1997,14(3):233.
APA	Nie, JC.,Chen, L.,Yang, T.,Huang, MQ.,Qu, PJ.,...&Li, L.(1997).Low-noise YBa2Cu3O7 dc-SQUIDs and magnetometers using step-edge junctions.CHINESE PHYSICS LETTERS,14(3),233.
MLA	Nie, JC,et al."Low-noise YBa2Cu3O7 dc-SQUIDs and magnetometers using step-edge junctions".CHINESE PHYSICS LETTERS 14.3(1997):233.