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dc.contributor.authorSchmitt, Christin
dc.contributor.authorBaldrati, Lorenzo
dc.contributor.authorSanchez-Tejerina, Luis
dc.contributor.authorSchreiber, Felix
dc.contributor.authorRoss, Andrew
dc.contributor.authorFilianina, Mariia
dc.contributor.authorDing, Shilei
dc.contributor.authorFuhrmann, Felix
dc.contributor.authorRamos, Rafael
dc.contributor.authorMaccherozzi, Francesco
dc.contributor.authorBackes, Dirk
dc.contributor.authorSaitoh, Eiji
dc.contributor.authorFinocchio, Giovanni
dc.contributor.authorKläui, Mathias
dc.date.accessioned2020-08-27T13:05:19Z
dc.date.available2020-08-27T13:05:19Z
dc.date.issued2020-08-19
dc.identifier.urihttp://hdl.handle.net/10754/664882
dc.description.abstractUnderstanding the electrical manipulation of antiferromagnetic order is a crucial aspect to enable the design of antiferromagnetic devices working at THz frequency. Focusing on collinear insulating antiferromagnetic NiO/Pt thin films as a materials platform, we identify the crystallographic orientation of the domains that can be switched by currents and quantify the N\'eel vector direction changes. We demonstrate electrical switching between different T-domains by current pulses, finding that the N\'eel vector orientation in these domains is along $[\pm1\ \pm1\ 3.8]$, different compared to the bulk $$ directions. The final state of the N\'eel vector $\textbf{n}$ switching after current pulses $\textbf{j}$ along the $[1\ \pm1\ 0]$ directions is $\textbf{n}\parallel \textbf{j}$. By comparing the observed N\'eel vector orientation and the strain in the thin films, assuming that this variation arises solely from magnetoelastic effects, we quantify the order of magnitude of the magnetoelastic coupling coefficient as $b_{0}+2b_{1}=3*10^7 J\ m^{-3}$ . This information is key for the understanding of current-induced switching in antiferromagnets and for the design and use of such devices as active elements in spintronic devices.
dc.description.sponsorshipL.B acknowledges the European Union’s Horizon 2020 research and innovation program under the Marie Skłodowska-Curie grant agreements ARTES number 793159. L.B., A.R., S.D., M.F. and M.K. acknowledge support from the Graduate School of Excellence Materials Science in Mainz (MAINZ) DFG 266, the DAAD (Spintronics network, Project No.57334897) and all groups from Mainz acknowledge that this work was funded by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) - TRR 173 – 268565370 (projects A01 and B02) and KAUST (OSR-2019-CRG8-4048). M.K. acknowledges financial support from the Horizon 2020 Framework Programme of the European Commission under FET-Open grant agreement no. 863155 (sNebula). We acknowledge Diamond Light Source for time on beamline I06 under proposals MM22448 and MM23819-1. This work was also supported by ERATO “Spin Quantum Rectification Project” (Grant No. JPMJER1402) and the Grant-in-Aid for Scientific Research on Innovative Area, “Nano Spin Conversion Science” (Grant No. JP26103005), Grant-in-Aid for Scientific Research (S) (Grant No. JP19H05600) from JSPS KAKENHI, R.R. also acknowledges support by Grant-in-Aid for Scientific Research (C) (Grant No. JP20K05297) from JSPS KAKENHI, Japan. This work was supported by the Max Planck Graduate Centre with the Johannes Gutenberg Universität Mainz (MPGC).
dc.publisherarXiv
dc.relation.urlhttps://arxiv.org/pdf/2008.08507
dc.rightsArchived with thanks to arXiv
dc.titleIdentification of Néel vector orientation in antiferromagnetic domains switched by currents in NiO/Pt thin films
dc.typePreprint
dc.eprint.versionPre-print
dc.contributor.institutionInstitute of Physics, Johannes Gutenberg-University Mainz, 55128 Mainz, Germany.
dc.contributor.institutionDepartment of Mathematical and Computer Sciences, Physical Sciences and Earth Sciences, University of Messina, 98166 Messina, Italy.
dc.contributor.institutionGraduate School of Excellence Materials Science in Mainz, 55128 Mainz, Germany.
dc.contributor.institutionState Key Laboratory for Mesoscopic Physics, School of Physics, Peking University, Beijing 100871, China.
dc.contributor.institutionWPI-Advanced Institute for Materials Research, Tohoku University, Sendai 980-8577, Japan.
dc.contributor.institutionDiamond Light Source, Chilton, Didcot, Oxfordshire OX11 0DE, United Kingdom.
dc.contributor.institutionInstitute for Materials Research, Tohoku University, Sendai 980-8577, Japan.
dc.contributor.institutionAdvanced Science Research Center, Japan Atomic Energy Agency, Tokai 319-1195, Japan.
dc.contributor.institutionCenter for Spintronics Research Network, Tohoku University, Sendai 980-8577, Japan.
dc.contributor.institutionDepartment of Applied Physics, The University of Tokyo, Tokyo 113-8656, Japan.
dc.identifier.arxivid2008.08507
kaust.grant.numberCRG
refterms.dateFOA2020-08-27T13:05:48Z
kaust.acknowledged.supportUnitOSR


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