Nano Archive

Quantum-size effects on Tc in superconducting nanofilms

Shanenko, A. A. and Croitoru, M. D. and Peeters, F. M. (2006) Quantum-size effects on Tc in superconducting nanofilms. EPL (Europhysics Letters), 76 (3). pp. 498-504.

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Official URL: http://stacks.iop.org/0295-5075/76/498

Abstract

An essential property of a high-quality metallic nanofilm is the quantization of the electron spectrum due to dimensional confinement in one direction. Quantum confinement has a substantial impact on the superconducting characteristics and leads to quantum-size variations of the critical temperature Tc with film thickness. We demonstrate that the Bogoliubov-de Gennes equations are able to describe the thickness-dependent Tc in nanofilms, and our results are in good agreement with recent experimental data on Pb flat terraces grown on silicon (Science, 306 (2004) 1915 and Nature Phys., 2 (2006) 173). We predict that the quantum-size oscillations of Tc will be more pronounced for Al

Item Type:Article
ID Code:5371
Deposited By:Prof. Alexey Ivanov
Deposited On:06 Feb 2010 11:10
Last Modified:06 Feb 2010 11:53

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