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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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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. : 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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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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