Suppression of superconductivity in epitaxial NbN ultrathin films

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	Suppression of superconductivity in epitaxial NbN ultrathin films
	L. Kang; B. B. Jin; X. Y. Liu; X. Q. Jia; J. Chen; Z. M. Ji; W. W. Xu; P. H. Wu; S. B. Mi; A. Pimenov; Y. J. Wu; B. G. Wang
	2011
发表期刊	Journal of Applied Physics
ISSN	0021-8979
卷号	109 期号:3
摘要	This paper studies the suppression of superconducting transition temperature (T(c)) of ultrathin NbN film. We fabricated epitaxial NbN superconducting thin films of thicknesses ranging from 2.5 to 100 nm on single crystal MgO (100) substrates by dc magnetron sputtering. We performed structure analyses and measured their electric and far infrared properties. The experimental results were compared with several mechanisms of the suppression of superconductivity proposed in the literature, including the weak localization effect, the proximity effect, and quantum size effect (electron wave leakage model). We found that the electron wave leakage model matches best to the experimental data. (C) 2011 American Institute of Physics. [doi:10.1063/1.3518037]
部门归属	[kang, l.; jin, b. b.; liu, x. y.; jia, x. q.; chen, j.; ji, z. m.; xu, w. w.; wu, p. h.] nanjing univ, res inst superconductor elect rise, sch elect sci & engn, nanjing 210093, peoples r china. [mi, s. b.] chinese acad sci, inst met res, solid atom imaging div, shenyang natl lab mat sci, shenyang 110016, peoples r china. [pimenov, a.] univ wurzburg, d-97074 wurzburg, germany. [wu, y. j.; wang, b. g.] nanjing univ, dept phys, natl lab solid state microstruct, nanjing 210093, peoples r china.;kang, l (reprint author), nanjing univ, res inst superconductor elect rise, sch elect sci & engn, nanjing 210093, peoples r china;bbjin@nju.edu.cn phwu@nju.edu.cn
关键词	Surface Impedance Thin-films Niobium Terahertz Resistivity Mixers Limit
URL	查看原文
WOS记录号	WOS:000287366000056
引用统计	被引频次：83[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/30429
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	L. Kang,B. B. Jin,X. Y. Liu,et al. Suppression of superconductivity in epitaxial NbN ultrathin films[J]. Journal of Applied Physics,2011,109(3).
APA	L. Kang.,B. B. Jin.,X. Y. Liu.,X. Q. Jia.,J. Chen.,...&B. G. Wang.(2011).Suppression of superconductivity in epitaxial NbN ultrathin films.Journal of Applied Physics,109(3).
MLA	L. Kang,et al."Suppression of superconductivity in epitaxial NbN ultrathin films".Journal of Applied Physics 109.3(2011).