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Title
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Magnetic flux periodicity in mesoscopic d-wave symmetric and asymmetric superconducting loops
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Author
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Abstract
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| The magnetic flux dependence of energy and supercurrent in mesoscopic d-wave symmetric and asymmetric superconducting loops is investigated by numerically solving the Bogoliubov-de Gennes equations self-consistently. For square loops, we find an hc/e-flux periodicity in energy and supercurrent and demonstrate that the flux periodicity is sensitive to the hole size and the superconducting pairing strength as well as temperature. The hc/2e-periodic behavior can be restored almost entirely when we displace the central hole sufficiently out of the center of the sample. In rectangular loops, the discrete current-carrying low-energy spectrum can exist for an odd winding number of the order parameter. |
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Language
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English
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Source (journal)
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Physical review : B : solid state. - Lancaster, Pa, 1970 - 1978
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Publication
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Lancaster, Pa
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2009
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ISSN
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0556-2805
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Volume/pages
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80
:14
(2009)
, p. 144501,1-144501,5
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ISI
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000271351500085
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Full text (Publisher's DOI)
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Full text (open access)
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