Measurement of Specific Capacitance for Nb/Al–AlO $_{x}$/Nb Josephson Junctions in Single-Flux Quantum Circuit Applications

doi:10.1109/TASC.2018.2812737

	Measurement of Specific Capacitance for Nb/Al–AlO $_{x}$/Nb Josephson Junctions in Single-Flux Quantum Circuit Applications
	Wei Xiong 1; Wanning Xu 1; Yu Wu2,3 ; Guanqun Li 1; Liliang Ying 3; Wei Peng 1; Jie Ren 1; Zhen Wang 1,2
	2018-06-01
发表期刊	IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY (IF:1.7[JCR-2023],1.5[5-Year])
ISSN	2378-7074
卷号	28 期号:4
发表状态	已发表
DOI	10.1109/TASC.2018.2812737
摘要	In this study, we investigate different technologies to measure the specific capacitances C8 of Nb/Al-AlOx/Nb Josephson junctions. They involve measuring Fiske mode resonance in long Josephson junctions, superconducting quantum interference device (SQUID) resonance, and Josephson plasma resonance. We find a logarithmic relationship between the junction C8 and its critical current density Jc in the range 0.1-2 kA/cm2 using the Fiske mode resonance method. Our measured C8 values using SQUID resonance and Josephson plasma resonance are compared with the results obtained by other groups via analyzing the major errors in the C8 calculation. We discuss the accuracy in evaluating C8 for all three techniques and suggest using Fiske mode resonance as a relatively stable method for C8 extraction for the future design of our single-flux quantum circuit.
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收录类别	SCI ; SCIE ; EI
来源库	IEEE
引用统计	正在获取...
文献类型	期刊论文
条目标识符	https://kms.shanghaitech.edu.cn/handle/2MSLDSTB/20230
专题	物质科学与技术学院_博士生
作者单位	1.University of Chinese Academy of Sciences, Beijing, China 2.ShanghaiTech University, Shanghai, China 3.Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai, China
推荐引用方式 GB/T 7714	Wei Xiong,Wanning Xu,Yu Wu,et al. Measurement of Specific Capacitance for Nb/Al–AlO $_{x}$/Nb Josephson Junctions in Single-Flux Quantum Circuit Applications[J]. IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY,2018,28(4).
APA	Wei Xiong.,Wanning Xu.,Yu Wu.,Guanqun Li.,Liliang Ying.,...&Zhen Wang.(2018).Measurement of Specific Capacitance for Nb/Al–AlO $_{x}$/Nb Josephson Junctions in Single-Flux Quantum Circuit Applications.IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY,28(4).
MLA	Wei Xiong,et al."Measurement of Specific Capacitance for Nb/Al–AlO $_{x}$/Nb Josephson Junctions in Single-Flux Quantum Circuit Applications".IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY 28.4(2018).