Skyrmion relaxation dynamics in the presence of quenched disorder

Simple item page
dc.contributor.authorBrown, Barton L.en
dc.contributor.authorTäuber, Uwe C.en
dc.contributor.authorPleimling, Michel J.en
dc.contributor.departmentCenter for Soft Matter and Biological Physicsen
dc.contributor.departmentPhysicsen
dc.date.accessioned2019-12-29T14:42:27Zen
dc.date.available2019-12-29T14:42:27Zen
dc.date.issued2019-07-09en
dc.date.updated2019-12-29T14:42:24Zen
dc.description.abstractUsing Langevin molecular dynamics simulations we study relaxation processes of interacting skyrmion systems with and without quenched disorder. Using the typical diffusion length as the time-dependent length characterizing the relaxation process, we find that clean systems always display dynamical scaling, and this even in cases where the typical length is not a simple power law of time. In the presence of the Magnus force, two different regimes are identified as a function of the noise strength. The Magnus force has also a major impact when attractive pinning sites are present, as this velocity-dependent force helps skyrmions to bend around defects and avoid caging effects. With the exception of the limit of large noise, for which dynamical scaling persists even in the presence of quenched disorder, attractive pinning sites capture a substantial fraction of skyrmions which results in a complex behavior of the two-time autocorrelation function that is not reproduced by a simple aging scaling ansatz.en
dc.description.notes17 pages, 5 figures, accepted for publication in the Physical Review Ben
dc.description.versionPublished versionen
dc.format.extent8 page(s)en
dc.identifierARTN 024410 (Article number)en
dc.identifier.doihttps://doi.org/10.1103/PhysRevB.100.024410en
dc.identifier.eissn2469-9969en
dc.identifier.issn2469-9950en
dc.identifier.issue2en
dc.identifier.orcidTauber, Uwe [0000-0001-7854-2254]en
dc.identifier.orcidPleimling, Michel [0000-0003-3191-3390]en
dc.identifier.urihttp://hdl.handle.net/10919/96230en
dc.identifier.volume100en
dc.languageEnglishen
dc.publisherAmerican Physical Societyen
dc.relation.urihttp://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000474884500001&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=930d57c9ac61a043676db62af60056c1en
dc.relation.urihttps://doi.org/10.1103/PhysRevB.100.024410en
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subjectTechnologyen
dc.subjectPhysical Sciencesen
dc.subjectMaterials Science, Multidisciplinaryen
dc.subjectPhysics, Applieden
dc.subjectPhysics, Condensed Matteren
dc.subjectMaterials Scienceen
dc.subjectPhysicsen
dc.subjectTEMPERATURE MAGNETIC SKYRMIONSen
dc.subjectMOTIONen
dc.subjectcond-mat.mes-hallen
dc.subjectcond-mat.stat-mechen
dc.titleSkyrmion relaxation dynamics in the presence of quenched disorderen
dc.title.serialPhysical Review Ben
dc.typeArticle - Refereeden
dc.type.otherArticleen
dc.type.otherJournalen
pubs.organisational-group/Virginia Tech/Scienceen
pubs.organisational-group/Virginia Tech/All T&R Facultyen
pubs.organisational-group/Virginia Tech/Science/Physicsen
pubs.organisational-group/Virginia Tech/Science/COS T&R Facultyen
pubs.organisational-group/Virginia Techen

Files

Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
PhysRevB.100.024410.pdf
Size:
1.39 MB
Format:
Adobe Portable Document Format
Description:
Published version
Download

Collections

All Faculty Deposits
Scholarly Works, Center for Soft Matter and Biological Physics
Scholarly Works, Physics