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Thickness dependence of the superconductivity in thin disordered NbSi films

Abstract : Superconducting a-NbxSi1-x thin films experience a lowering of the T-c until the superconductivity disappears through a Superconductor-Insulator Transition (SIT). We here present transport measurements on 2D a-NbxSi1-x films, close to the SIT, for different compositions and thicknesses. We investigate the lowering of the T-c in light of existing theories, especially the one developed by Finkel'stein.
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Contributor : Christine Hadrossek <>
Submitted on : Monday, May 30, 2011 - 5:08:05 PM
Last modification on : Wednesday, September 16, 2020 - 4:17:46 PM

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O. Crauste, C.A. Marrache-Kikuchi, L. Berge, D. Stanescu, L. Dumoulin. Thickness dependence of the superconductivity in thin disordered NbSi films. 25TH INTERNATIONAL CONFERENCE ON LOW TEMPERATURE PHYSICS (LT25), PART 4 - QUANTUM PHASE TRANSITIONS AND MAGNETISM, Aug 2008, Amsterdam, Netherlands. pp.042019, ⟨10.1088/1742-6596/150/4/042019⟩. ⟨in2p3-00596985⟩

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