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Report No.

Absence of evidence of spin transport through amorphous Y$$_3$$Fe$$_5$$O$$_{12}$$

Gomez-Perez, J. M.*; Oyanagi, Koichi*; Yahiro, Reimei*; Ramos, R.*; Hueso, L. E.*; Saito, Eiji; Casanova, F.*

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.



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Category:Physics, Applied



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