Mechanism of Néel order switching in antiferromagnetic thin films revealed by magnetotransport and direct imaging
Physical review letters. Bd. 123. H. 17. College Park, Md.: APS 2019 Art. 177201
Erscheinungsjahr: 2019
ISBN/ISSN: 1079-7114 ; 0031-9007
Publikationstyp: Zeitschriftenaufsatz (Forschungsbericht)
Sprache: Englisch
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Inhaltszusammenfassung
We probe the current-induced magnetic switching of insulating antiferromagnet–heavy-metal systems, by electrical spin Hall magnetoresistance measurements and direct imaging, identifying a reversal occurring by domain wall (DW) motion. We observe switching of more than one-third of the antiferromagnetic domains by the application of current pulses. Our data reveal two different magnetic switching mechanisms leading together to an efficient switching, namely, the spin-current induced effective ...We probe the current-induced magnetic switching of insulating antiferromagnet–heavy-metal systems, by electrical spin Hall magnetoresistance measurements and direct imaging, identifying a reversal occurring by domain wall (DW) motion. We observe switching of more than one-third of the antiferromagnetic domains by the application of current pulses. Our data reveal two different magnetic switching mechanisms leading together to an efficient switching, namely, the spin-current induced effective magnetic anisotropy variation and the action of the spin torque on the DWs.» weiterlesen» einklappen
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Klassifikation
DDC Sachgruppe:
Physik
