Fabrication and Characteristics of All-NbN SQUID Series Array
Zhang, Qiyu1,2; Wang, Huiwu3; Tang, Xin1,2; Peng, Wei3; Wang, Zhen2,3,4
2020-04
Source PublicationIEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY
ISSN1051-8223
Volume30Issue:3
Status已发表
DOI10.1109/TASC.2019.2938582
Abstract

In this article, an all-NbN superconducting quantum interference device (SQUID) array was developed for future applications by taking advantage of the higher critical temperature of a NbN film compared with Nb. The NbN SQUID array was composed of 100 SQUIDS with equal loop areas connected in series. The array was fabricated on a single-crystal MgO (100) substrate using 3-mu m-diameter NbN/AIN/NbN Josephson junctions. The hysteresis and shielding parameters of the SQUID were 0.67 and 0.15, respectively. The SQUIDS in the array were coherently modulated by injecting current in a common flux control line, which resulted in a modulation voltage of 3.54 mV with consistent periodicity and a flux-to-voltage transfer coefficient of 23 mV/Phi(0). Using a flux locked loop circuit, the fabricated NbN SQUID array exhibited excellent performance with a low white flux noise of 1.4 mu Phi(0)/root Hz, which included the preamplifier noise.

KeywordDC superconducting quantum interference device (SQUID) Josephson junction NbN SQUID array
Indexed BySCI
WOS Research AreaEngineering ; Physics
WOS SubjectEngineering, Electrical & Electronic ; Physics, Applied
WOS IDWOS:000487062500001
PublisherIEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
EI KeywordsAluminum compounds ; Fabrication ; Josephson junction devices ; Magnesia ; Molluscs ; Quantum interference devices ; Quantum optics ; Shellfish ; Single crystals ; SQUIDs ; Superconducting films
WOS KeywordDC SQUID ; JUNCTIONS
Original Document TypeArticle
Citation statistics
Cited Times [WOS]:0   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://kms.shanghaitech.edu.cn/handle/2MSLDSTB/80244
Collection物质科学与技术学院_特聘教授组_王镇组
Corresponding AuthorZhang, Qiyu
Affiliation1.Chinese Acad Sci, Shanghai Inst Microsyst & Informat Technol, Shanghai 200050, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Chinese Acad Sci, Ctr Excellence Superconducting Elect, Shanghai Inst Microsyst & Informat Technol, Shanghai 200050, Peoples R China
4.Shanghai Tech Univ, Shanghai 201210, Peoples R China
Recommended Citation
GB/T 7714
Zhang, Qiyu,Wang, Huiwu,Tang, Xin,et al. Fabrication and Characteristics of All-NbN SQUID Series Array[J]. IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY,2020,30(3).
APA Zhang, Qiyu,Wang, Huiwu,Tang, Xin,Peng, Wei,&Wang, Zhen.(2020).Fabrication and Characteristics of All-NbN SQUID Series Array.IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY,30(3).
MLA Zhang, Qiyu,et al."Fabrication and Characteristics of All-NbN SQUID Series Array".IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY 30.3(2020).
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