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Title
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Kink-antikink vortex transfer in periodic-plus-random pinning potential : theoretical analysis and numerical experiments
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Author
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Abstract
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| The influence of random pinning on the vortex dynamics in a periodic square potential under an external drive is investigated. Using numerical experiments and theoretical approach, we found several dynamical regimes of vortex motion that are different from the ones for a regular pinning potential. Vortex transfer is controlled by kinks and antikinks, which either pre-exist in the system or appear spontaneously in pairs and then propagate. When kinks and antikinks collide, they annihilate. We provide clear physical interpretations of the observed features. |
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Language
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English
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Source (journal)
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Physical review : B : condensed matter and materials physics. - Lancaster, Pa, 1998 - 2015
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Publication
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Lancaster, Pa
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2010
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ISSN
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1098-0121
[print]
1550-235X
[online]
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Volume/pages
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81
:2
(2010)
, p. 024513-1-024513-7
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ISI
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000274002100087
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Full text (Publisher's DOI)
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Full text (open access)
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