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Title: Nonuniform self-organized dynamical states in superconductors with periodic pinning
Authors: Misko, Vyacheslav R.
Savel'ev, Sergey
Rakhmanov, Alexander L.
Nori, Franco
Issue Date: 2006
Publisher: © American Physical Society
Citation: MISKO, V.R. ... et al., 2006. Nonuniform self-organized dynamical states in superconductors with periodic pinning. Physical Review Letters, 96, 127004
Abstract: We consider magnetic flux moving in superconductors with periodic pinning arrays. We show that sample heating by moving vortices produces negative differential resistivity (NDR) of both N and S type (i.e., N- and S-shaped) in the voltage-current characteristic (VI curve). The uniform flux flow state is unstable in the NDR region of the VI curve. Domain structures appear during the NDR part of the VI curve of an N type, while a filamentary instability is observed for the NDR of an S type. The simultaneous existence of the NDR of both types gives rise to the appearance of striking self-organized (both stationary and nonstationary) two-dimensional dynamical structures.
Description: This article has been published in the journal, Physical Review Letters [© American Physical Society]. It is also available at: http://link.aps.org/abstract/PRL/v96/e127004.
URI: https://dspace.lboro.ac.uk/2134/1351
ISSN: 0031-9007
Appears in Collections:Published Articles (Physics)

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