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	Dissipation in an ultrathin superconducting single-crystal Pb nanobridge
	Wang, Jian ; Ma, Xu-Cun ; Qi, Yun ; Ji, Shuai-Hua ; Fu, Ying-Shuang ; Lu, Li ; Jin, Ai-Zi ; Gu, Chang-Zhi ; Xie, X. C. ; Tian, Ming-Liang ; Jia, Jin-Feng ; Xue, Qi-Kun
	2010-10-12 ; 2010-10-12
关键词	critical currents focused ion beam technology lead molecular beam epitaxial growth nanostructured materials silicon slip superconducting thin films superconducting transition temperature type I superconductors THIN-FILMS NANOWIRES WIRES METAL Physics, Applied
中文摘要	The transport property of a superconducting Pb nanobridge, which is carved by focus ion beam technique from an atomically flat single-crystal Pb thin film grown on Si(111) substrate, is investigated. Below the superconducting transition temperature T-C, the nanobridge exhibits a series of sharp voltage steps as a function of current. The multiple voltage steps are interpreted as a consequence of spatially localized phase slip centers or hot-spot formation in the bridge. Just below the critical current, the voltages versus current curve shows a power-law behavior in the low temperature region, but Ohmic near the T-C. The thermally activated phase slip, quantum phase slip, and imhomogeneity in a one-dimensional superconducting system may contribute to the observed results.
语种	英语 ; 英语
出版者	AMER INST PHYSICS ; MELVILLE ; CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1, MELVILLE, NY 11747-4501 USA
内容类型	期刊论文
源URL	[http://hdl.handle.net/123456789/81560]
专题	清华大学
推荐引用方式 GB/T 7714	Wang, Jian,Ma, Xu-Cun,Qi, Yun,et al. Dissipation in an ultrathin superconducting single-crystal Pb nanobridge[J],2010, 2010.
APA	Wang, Jian.,Ma, Xu-Cun.,Qi, Yun.,Ji, Shuai-Hua.,Fu, Ying-Shuang.,...&Xue, Qi-Kun.(2010).Dissipation in an ultrathin superconducting single-crystal Pb nanobridge..
MLA	Wang, Jian,et al."Dissipation in an ultrathin superconducting single-crystal Pb nanobridge".(2010).

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