Reversible to irreversible transitions in periodically driven skyrmion systems

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dc.contributor.authorBrown, Barton L.en
dc.contributor.authorReichhardt, C.en
dc.contributor.authorReichhardt, C. J. O.en
dc.contributor.departmentCenter for Soft Matter and Biological Physicsen
dc.contributor.departmentPhysicsen
dc.date.accessioned2019-04-05T14:31:03Zen
dc.date.available2019-04-05T14:31:03Zen
dc.date.issued2019-01-08en
dc.description.abstractWe examine skyrmions driven periodically over random quenched disorder and show that there is a transition from reversible motion to a state in which the skyrmion trajectories are chaotic or irreversible. We find that the characteristic time required for the system to organize into a steady reversible or irreversible state exhibits a power law divergence near a critical ac drive period, with the same exponent as that observed for reversible to irreversible transitions in periodically sheared colloidal systems, suggesting that the transition can be described as an absorbing phase transition in the directed percolation universality class. We compare our results to the behavior of an overdamped system and show that the Magnus term enhances the irreversible behavior by increasing the number of dynamically accessible orbits. We discuss the implications of this work for skyrmion applications involving the long time repeatable dynamics of dense skyrmion arrays. © 2019 The Author(s). Published by IOP Publishing Ltd on behalf of the Institute of Physics and Deutsche Physikalische Gesellschaft.en
dc.description.notesWe gratefully acknowledge the support of the US Department of Energy through the LANL/LDRD program for this work. This work was carried out under the auspices of the NNSA of the US DoE at LANL under Contract No. DE-AC52-06NA25396 and through the LANL/LDRD program.en
dc.format.mimetypeapplication/pdfen
dc.identifier.doihttps://doi.org/10.1088/1367-2630/aaf8dden
dc.identifier.issn13672630en
dc.identifier.issue1en
dc.identifier.other13001en
dc.identifier.urihttp://hdl.handle.net/10919/88839en
dc.identifier.volume21en
dc.language.isoen_USen
dc.publisherInstitute of Physics Publishingen
dc.rightsCreative Commons Attribution 3.0 Unporteden
dc.rights.urihttp://creativecommons.org/licenses/by/3.0/en
dc.subjectnonequilibrium phase transitionen
dc.subjectskyrmionen
dc.subjectsuperconducting vortexen
dc.titleReversible to irreversible transitions in periodically driven skyrmion systemsen
dc.title.serialNew Journal of Physicsen
dc.typeArticle - Refereeden
dc.type.dcmitypeTexten

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