| 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 | |
| Source Publication | Journal of Applied Physics
 |
| ISSN | 0021-8979 |
| Volume | 109Issue:3 |
| Abstract | 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] |
| description.department | [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 |
| Keyword | Surface Impedance Thin-films Niobium Terahertz Resistivity Mixers Limit |
| URL | 查看原文 |
| WOS ID | WOS:000287366000056 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/30429 |
| Collection | 中国科学院金属研究所 |
| Recommended Citation 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). |
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