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dc.contributor.authorZhang, Senfu
dc.contributor.authorZhang, Junwei
dc.contributor.authorWen, Yan
dc.contributor.authorChudnovsky, Eugene M.
dc.contributor.authorZhang, Xixiang
dc.date.accessioned2019-04-28T13:13:15Z
dc.date.available2019-04-28T13:13:15Z
dc.date.issued2018-05-10
dc.identifier.urihttp://hdl.handle.net/10754/632523
dc.description.abstractMagnetic skyrmions are topologically protected nanoscale spin textures exhibiting fascinating physical behaviors. Recent observations of room temperature N\'eel-type skyrmions in magnetic multilayer films are an important step towards their use in ultra-low power devices. We have investigated the magnetization reversal in a [Pt/Co/Ta]11 multilayer sample under a tilted magnetic field using the in-situ Lorentz tunneling electron microscopy. On decreasing the magnetic field individual skyrmions appear that subsequently evolve into snake-like structures growing in the direction opposite to the in-plane magnetic field. We show that this unusual relation between the velocity vector and the magnetic field is dominated by the chirality of the N\'eel-type skyrmions. It allows one to extract the sign of the Dzyaloshinskii-Moriya constant. We also demonstrate that high concentration of skyrmions can be achieved on increasing the in-plane component of the field. Our micromagnetic simulations agree with our experimental results.
dc.publisherarXiv
dc.relation.urlhttp://arxiv.org/abs/1805.03875v1
dc.relation.urlhttp://arxiv.org/pdf/1805.03875v1
dc.rightsArchived with thanks to arXiv
dc.titleDetermination of chirality and density control of N\'eel-type skyrmions with in-plane magnetic field
dc.typePreprint
dc.contributor.departmentMaterial Science and Engineering Program
dc.contributor.departmentPhysical Science and Engineering (PSE) Division
dc.eprint.versionPre-print
dc.contributor.institutionPhysics Department, Lehman College and Graduate School, The City University of New York, 250 Bedford Park Boulevard West, Bronx, New York 10468-1589, USA
dc.identifier.arxivid1805.03875
kaust.personZhang, Senfu
kaust.personZhang, Junwei
kaust.personWen, Yan
kaust.personZhang, Xixiang
kaust.grant.numberOSR2016-CRG5-2977
dc.versionv1
refterms.dateFOA2019-04-29T06:45:11Z


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