Direct writing of room temperature and zero field skyrmion lattices by a scanning local magnetic field

Handle URI:
http://hdl.handle.net/10754/627497
Title:
Direct writing of room temperature and zero field skyrmion lattices by a scanning local magnetic field
Authors:
Zhang, Senfu; Zhang, Junwei; Zhang, Qiang ( 0000-0001-8519-5158 ) ; Barton, Craig; Neu, Volker ( 0000-0001-9170-1280 ) ; Zhao, Yuelei; Hou, Zhipeng; Wen, Yan; Gong, Chen; Kazakova, Olga ( 0000-0002-8473-2414 ) ; Wang, Wenhong ( 0000-0002-0641-3792 ) ; Peng, Yong; Garanin, Dmitry A.; Chudnovsky, Eugene M. ( 0000-0002-1880-3966 ) ; Zhang, Xixiang ( 0000-0002-3478-6414 )
Abstract:
Magnetic skyrmions are topologically protected nanoscale spin textures exhibiting fascinating physical behaviors. Recent observations of room temperature skyrmions in sputtered multilayer films are an important step towards their use in ultra-low power devices. Such practical applications prefer skyrmions to be stable at zero magnetic fields and room temperature. Here, we report the creation of skyrmion lattices in Pt/Co/Ta multilayers by a scanning local field using magnetic force microscopy tips. We also show that those newly created skyrmion lattices are stable at both room temperature and zero fields. Lorentz transmission electron microscopy measurements reveal that the skyrmions in our films are of Néel-type. To gain a deeper understanding of the mechanism behind the creation of a skyrmion lattice by the scanning of local fields, we perform micromagnetic simulations and find the experimental results to be in agreement with our simulation data. This study opens another avenue for the creation of skyrmion lattices in thin films.
KAUST Department:
Physical Sciences and Engineering (PSE) Division; Materials Science and Engineering Program
Citation:
Zhang S, Zhang J, Zhang Q, Barton C, Neu V, et al. (2018) Direct writing of room temperature and zero field skyrmion lattices by a scanning local magnetic field. Applied Physics Letters 112: 132405. Available: http://dx.doi.org/10.1063/1.5021172.
Publisher:
AIP Publishing
Journal:
Applied Physics Letters
KAUST Grant Number:
OSR-2016-CRG5-2977
Issue Date:
29-Mar-2018
DOI:
10.1063/1.5021172
Type:
Article
ISSN:
0003-6951; 1077-3118
Sponsors:
This publication is based on the research supported by the King Abdullah University of Science and Technology (KAUST), Office of Sponsored Research (OSR) under the Award No. OSR-2016-CRG5-2977. This work was also supported in part by the European Metrology Research Programme (EMRP) and EMRP participating countries under the EMPIR Project No. 15SIB06 Nanomag: Nano-scale traceable magnetic field measurements.
Additional Links:
https://aip.scitation.org/doi/10.1063/1.5021172
Appears in Collections:
Articles; Physical Sciences and Engineering (PSE) Division; Materials Science and Engineering Program

Full metadata record

DC FieldValue Language
dc.contributor.authorZhang, Senfuen
dc.contributor.authorZhang, Junweien
dc.contributor.authorZhang, Qiangen
dc.contributor.authorBarton, Craigen
dc.contributor.authorNeu, Volkeren
dc.contributor.authorZhao, Yueleien
dc.contributor.authorHou, Zhipengen
dc.contributor.authorWen, Yanen
dc.contributor.authorGong, Chenen
dc.contributor.authorKazakova, Olgaen
dc.contributor.authorWang, Wenhongen
dc.contributor.authorPeng, Yongen
dc.contributor.authorGaranin, Dmitry A.en
dc.contributor.authorChudnovsky, Eugene M.en
dc.contributor.authorZhang, Xixiangen
dc.date.accessioned2018-04-16T11:27:41Z-
dc.date.available2018-04-16T11:27:41Z-
dc.date.issued2018-03-29en
dc.identifier.citationZhang S, Zhang J, Zhang Q, Barton C, Neu V, et al. (2018) Direct writing of room temperature and zero field skyrmion lattices by a scanning local magnetic field. Applied Physics Letters 112: 132405. Available: http://dx.doi.org/10.1063/1.5021172.en
dc.identifier.issn0003-6951en
dc.identifier.issn1077-3118en
dc.identifier.doi10.1063/1.5021172en
dc.identifier.urihttp://hdl.handle.net/10754/627497-
dc.description.abstractMagnetic skyrmions are topologically protected nanoscale spin textures exhibiting fascinating physical behaviors. Recent observations of room temperature skyrmions in sputtered multilayer films are an important step towards their use in ultra-low power devices. Such practical applications prefer skyrmions to be stable at zero magnetic fields and room temperature. Here, we report the creation of skyrmion lattices in Pt/Co/Ta multilayers by a scanning local field using magnetic force microscopy tips. We also show that those newly created skyrmion lattices are stable at both room temperature and zero fields. Lorentz transmission electron microscopy measurements reveal that the skyrmions in our films are of Néel-type. To gain a deeper understanding of the mechanism behind the creation of a skyrmion lattice by the scanning of local fields, we perform micromagnetic simulations and find the experimental results to be in agreement with our simulation data. This study opens another avenue for the creation of skyrmion lattices in thin films.en
dc.description.sponsorshipThis publication is based on the research supported by the King Abdullah University of Science and Technology (KAUST), Office of Sponsored Research (OSR) under the Award No. OSR-2016-CRG5-2977. This work was also supported in part by the European Metrology Research Programme (EMRP) and EMRP participating countries under the EMPIR Project No. 15SIB06 Nanomag: Nano-scale traceable magnetic field measurements.en
dc.publisherAIP Publishingen
dc.relation.urlhttps://aip.scitation.org/doi/10.1063/1.5021172en
dc.rightsThis article may be downloaded for personal use only. Any other use requires prior permission of the author and AIP Publishing. The following article appeared in Applied Physics Letters and may be found at http://doi.org/10.1063/1.5021172.en
dc.subjectMaterialsen
dc.subjectMicroscopyen
dc.subjectMagnetismen
dc.subjectMagnetic orderingen
dc.subjectChemical analysisen
dc.subjectElectron microscopyen
dc.subjectMagnetic force microscopyen
dc.subjectMaterials analysisen
dc.subjectThin filmsen
dc.subjectMagnetic equipmenten
dc.titleDirect writing of room temperature and zero field skyrmion lattices by a scanning local magnetic fielden
dc.typeArticleen
dc.contributor.departmentPhysical Sciences and Engineering (PSE) Divisionen
dc.contributor.departmentMaterials Science and Engineering Programen
dc.identifier.journalApplied Physics Lettersen
dc.eprint.versionPublisher's Version/PDFen
dc.contributor.institutionKey Laboratory for Magnetism and Magnetic Materials of Ministry of Education, Lanzhou University, Lanzhou 730000, People's Republic of Chinaen
dc.contributor.institutionNational Physical Laboratory, Hampton Road, Teddington TW11 0LW, United Kingdomen
dc.contributor.institutionIFW Dresden, Institute for Metallic Materials, Helmholtzstrasse 20, 01069 Dresden, Germanyen
dc.contributor.institutionNational Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, Chinaen
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, USAen
kaust.authorZhang, Senfuen
kaust.authorZhang, Junweien
kaust.authorZhang, Qiangen
kaust.authorZhao, Yueleien
kaust.authorHou, Zhipengen
kaust.authorWen, Yanen
kaust.authorGong, Chenen
kaust.authorZhang, Xixiangen
kaust.grant.numberOSR-2016-CRG5-2977en
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