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Open Access item Vortex core deformation and stepper-motor ratchet behavior in a superconducting aluminum film containing an array of holes

Authors:Van de Vondel, J.
Gladilin, V. N.
Devreese, J. T.
Moshchalkov, V. V.
Issue Date:2011
Publisher:American Physical Society
Citation:Physical Review Letters 106(13): 137003 (2011)
Abstract:We investigated experimentally the frequency dependence of a superconducting vortex ratchet effect by means of electrical transport measurements and modeled it theoretically using the time-dependent Ginzburg-Landau formalism. We demonstrate that the high frequency vortex behavior can be described as a discrete motion of a particle in a periodic potential, i.e., the so-called stepper-motor behavior. Strikingly, in the more conventional low frequency response a transition takes place from an Abrikosov vortex rectifier to a phase slip line rectifier. This transition is characterized by a strong increase in the rectified voltage and the appearance of a pronounced hysteretic behavior. © 2011 American Physical Society.
URI:http://hdl.handle.net/10261/51131
Identifiers:doi: 10.1103/PhysRevLett.106.137003
issn: 0031-9007
Appears in Collections:(CIN2) Artículos

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