4. Concurrent magneto-optical imaging and magneto-transport readout of electrical switching of insulating antiferromagnetic thin films

Authors: Felix Schreiber, Lorenzo Baldrati, Christin Schmitt, Rafael Ramos, Eiji Saitoh, Romain Lebrun, Mathias Kläui

Published: Tue, 28 Apr 2020

arXiv link
Data Set (Zenodo link)


We demonstrate stable and reversible current induced switching of large-area (>100μm2) antiferromagnetic domains in NiO/Pt by performing concurrent transport and magneto-optical imaging measurements in an adapted Kerr microscope. By correlating the magnetic images of the antiferromagnetic domain changes and magneto-transport signal response in these current-induced switching experiments, we disentangle magnetic and non-magnetic contributions to the transport signal. Our table-top approach establishes a robust procedure to subtract the non-magnetic contributions in the transport signal and extract the spin-Hall magnetoresistance response associated with the switching of the antiferromagnetic domains enabling one to deduce details of the antiferromagnetic switching from simple transport measurements.

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