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Title
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Superconducting nanowires: quantum-confinement effect on the critical magnetic field and supercurrent
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Author
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Abstract
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| We study the effect, of electron confinement on the superconducting-to-normal phase transition driven by a magnetic field and/or on the current-carrying state of the superconducting condensate in nanowires. Our investigation is based on a self-consistent. numerical solution of the Bogoliubov-de Gennes equations. We show that, in a parallel magnetic field and/or in the presence of supercurrent the transition from superconducting to normal phase occurs as a cascade of discontinuous jumps in the superconducting order parameter for diameters D < 10 divided by 15 nm at T = 0. The critical magnetic held exhibits quantum-size oscillations with pronounced resonant enhancements. |
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Language
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English
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Source (book)
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Proceedings 32nd International Workshop on Condensed Matter Theories, August 12-19, 2008, Loughborough, England / Kusmartsev, F. [edit.]
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Publication
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Singapore
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World Scientific
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2010
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ISBN
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978-981-4289-14-6
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DOI
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10.1142/9789814289153_0025
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Volume/pages
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p. 327-338
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ISI
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000278418300025
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Full text (Publisher's DOI)
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