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Title
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Surface barrier for flux entry and exit in mesoscopic superconducting systems
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Author
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Abstract
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| The energy barrier which has to be overcome for a single vortex to enter or exit the sample is studied for thin superconducting disks, rings, and squares using the nonlinear Ginzburg-Landau theory. The shape and the height of the nucleation barrier is investigated for different sample radii and thicknesses and for different values of the Ginzburg-Landau parameter kappa. It is shown that the London theory considerably overestimates (underestimates) the energy barrier for vortex expulsion (penetration). (c) 2005 American Institute of Physics. |
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Language
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English
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Source (journal)
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Journal of mathematical physics. - New York, N.Y.
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Publication
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New York, N.Y.
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2005
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ISSN
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0022-2488
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Volume/pages
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46
:9
(2005)
, 17 p.
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Article Reference
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095105
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ISI
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000232206700005
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Medium
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E-only publicatie
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Full text (Publisher's DOI)
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Full text (publisher's version - intranet only)
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