Enhanced Nonadiabaticity in Vortex Cores due to the Emergent Hall Effect

Handle URI:
http://hdl.handle.net/10754/622726
Title:
Enhanced Nonadiabaticity in Vortex Cores due to the Emergent Hall Effect
Authors:
Bisig, André; Akosa, Collins Ashu ( 0000-0002-5367-9972 ) ; Moon, Jung-Hwan; Rhensius, Jan; Moutafis, Christoforos; von Bieren, Arndt; Heidler, Jakoba; Kiliani, Gillian; Kammerer, Matthias; Curcic, Michael; Weigand, Markus; Tyliszczak, Tolek; Van Waeyenberge, Bartel; Stoll, Hermann; Schütz, Gisela; Lee, Kyung-Jin; Manchon, Aurelien ( 0000-0002-4768-293X ) ; Kläui, Mathias
Abstract:
We present a combined theoretical and experimental study, investigating the origin of the enhanced nonadiabaticity of magnetic vortex cores. Scanning transmission x-ray microscopy is used to image the vortex core gyration dynamically to measure the nonadiabaticity with high precision, including a high confidence upper bound. We show theoretically, that the large nonadiabaticity parameter observed experimentally can be explained by the presence of local spin currents arising from a texture induced emergent Hall effect. This study demonstrates that the magnetic damping α and nonadiabaticity parameter β are very sensitive to the topology of the magnetic textures, resulting in an enhanced ratio (β/α>1) in magnetic vortex cores or Skyrmions.
KAUST Department:
Physical Sciences and Engineering (PSE) Division
Citation:
Bisig A, Akosa CA, Moon J-H, Rhensius J, Moutafis C, et al. (2016) Enhanced Nonadiabaticity in Vortex Cores due to the Emergent Hall Effect. Physical Review Letters 117. Available: http://dx.doi.org/10.1103/physrevlett.117.277203.
Publisher:
American Physical Society (APS)
Journal:
Physical Review Letters
KAUST Grant Number:
CRG2-R2-13-MANC-KAUST-1
Issue Date:
4-Jan-2017
DOI:
10.1103/physrevlett.117.277203
Type:
Article
ISSN:
0031-9007; 1079-7114
Sponsors:
The authors acknowledge support by the German Science Foundation Grants No.DFG SFB 767, SFB TRR 173 Spin+X, KL1811, MAINZ GSC 266, the ERC No.MASPIC 2007-Stg 208162, the EU RTN Spinswitch, No.MRTN CT-2006-035327, No.MAGWIRE FP7-ICT-2009-5 257707, COMATT and the Swiss National Science Foundation. We also thank Michael Bechtel and the BESSY II staff for supporting the time-resolved studies at the HZB Berlin. The Advanced Light Source is supported by the Director, Office of Science, Office of Basic Energy Sciences, and of the U.S. Department of Energy under Contract No.DE-AC02-05CH11231. A.M. and C.A. are supported by the King Abdullah University of Science and Technology (KAUST) through Grant No.CRG2-R2-13-MANC-KAUST-1 from the Office of Sponsored Research (OSR).
Additional Links:
http://journals.aps.org/prl/abstract/10.1103/PhysRevLett.117.277203
Appears in Collections:
Articles; Physical Sciences and Engineering (PSE) Division

Full metadata record

DC FieldValue Language
dc.contributor.authorBisig, Andréen
dc.contributor.authorAkosa, Collins Ashuen
dc.contributor.authorMoon, Jung-Hwanen
dc.contributor.authorRhensius, Janen
dc.contributor.authorMoutafis, Christoforosen
dc.contributor.authorvon Bieren, Arndten
dc.contributor.authorHeidler, Jakobaen
dc.contributor.authorKiliani, Gillianen
dc.contributor.authorKammerer, Matthiasen
dc.contributor.authorCurcic, Michaelen
dc.contributor.authorWeigand, Markusen
dc.contributor.authorTyliszczak, Toleken
dc.contributor.authorVan Waeyenberge, Bartelen
dc.contributor.authorStoll, Hermannen
dc.contributor.authorSchütz, Giselaen
dc.contributor.authorLee, Kyung-Jinen
dc.contributor.authorManchon, Aurelienen
dc.contributor.authorKläui, Mathiasen
dc.date.accessioned2017-01-25T08:57:41Z-
dc.date.available2017-01-25T08:57:41Z-
dc.date.issued2017-01-04en
dc.identifier.citationBisig A, Akosa CA, Moon J-H, Rhensius J, Moutafis C, et al. (2016) Enhanced Nonadiabaticity in Vortex Cores due to the Emergent Hall Effect. Physical Review Letters 117. Available: http://dx.doi.org/10.1103/physrevlett.117.277203.en
dc.identifier.issn0031-9007en
dc.identifier.issn1079-7114en
dc.identifier.doi10.1103/physrevlett.117.277203en
dc.identifier.urihttp://hdl.handle.net/10754/622726-
dc.description.abstractWe present a combined theoretical and experimental study, investigating the origin of the enhanced nonadiabaticity of magnetic vortex cores. Scanning transmission x-ray microscopy is used to image the vortex core gyration dynamically to measure the nonadiabaticity with high precision, including a high confidence upper bound. We show theoretically, that the large nonadiabaticity parameter observed experimentally can be explained by the presence of local spin currents arising from a texture induced emergent Hall effect. This study demonstrates that the magnetic damping α and nonadiabaticity parameter β are very sensitive to the topology of the magnetic textures, resulting in an enhanced ratio (β/α>1) in magnetic vortex cores or Skyrmions.en
dc.description.sponsorshipThe authors acknowledge support by the German Science Foundation Grants No.DFG SFB 767, SFB TRR 173 Spin+X, KL1811, MAINZ GSC 266, the ERC No.MASPIC 2007-Stg 208162, the EU RTN Spinswitch, No.MRTN CT-2006-035327, No.MAGWIRE FP7-ICT-2009-5 257707, COMATT and the Swiss National Science Foundation. We also thank Michael Bechtel and the BESSY II staff for supporting the time-resolved studies at the HZB Berlin. The Advanced Light Source is supported by the Director, Office of Science, Office of Basic Energy Sciences, and of the U.S. Department of Energy under Contract No.DE-AC02-05CH11231. A.M. and C.A. are supported by the King Abdullah University of Science and Technology (KAUST) through Grant No.CRG2-R2-13-MANC-KAUST-1 from the Office of Sponsored Research (OSR).en
dc.publisherAmerican Physical Society (APS)en
dc.relation.urlhttp://journals.aps.org/prl/abstract/10.1103/PhysRevLett.117.277203en
dc.rightsArchived with thanks to Physical Review Lettersen
dc.titleEnhanced Nonadiabaticity in Vortex Cores due to the Emergent Hall Effecten
dc.typeArticleen
dc.contributor.departmentPhysical Sciences and Engineering (PSE) Divisionen
dc.identifier.journalPhysical Review Lettersen
dc.eprint.versionPublisher's Version/PDFen
dc.contributor.institutionDepartment of Physics, University of Konstanz, Konstanz, 78457, Germanyen
dc.contributor.institutionMax Planck Institute for Intelligent Systems, Stuttgart, 70569, Germanyen
dc.contributor.institutionInstitute of Condensed Matter Physics, École Polytechnique Fédérale de Lausanne, Lausanne, 1015, Switzerlanden
dc.contributor.institutionPaul Scherrer Institute, Villigen PSI, 5232, Switzerlanden
dc.contributor.institutionInstitut of Physics, Johannes Gutenberg University Mainz, Mainz, 55099, Germanyen
dc.contributor.institutionDepartment of Materials Science and Engineering, Korea University, Seoul, 136-713, South Koreaen
dc.contributor.institutionAdvanced Light Source, LBL, University of California, Berkeley, Berkeley, CA, 94720, United Statesen
dc.contributor.institutionDepartment of Solid State Sciences, Ghent University, Ghent, 9000, Belgiumen
dc.contributor.institutionKU-KIST Graduate School of Converging Science and Technology, Korea University, Seoul, 136-713, South Koreaen
kaust.authorAkosa, Collins Ashuen
kaust.authorManchon, Aurelienen
kaust.grant.numberCRG2-R2-13-MANC-KAUST-1en
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