Publication Date:
2018-07-25
Description:
Author(s): L. Baldrati, A. Ross, T. Niizeki, C. Schneider, R. Ramos, J. Cramer, O. Gomonay, M. Filianina, T. Savchenko, D. Heinze, A. Kleibert, E. Saitoh, J. Sinova, and M. Kläui Electrical readout of the orientation of an antiferromagnet by detecting the Néel vector is necessary to exploit this class of materials for applications. Here, the authors study bilayers of thin films of the epitaxial antiferromagnetic insulator NiO(001) and the heavy metal Pt. The observed three-dimensional angular dependence of the spin Hall magnetoresistance (SMR) is analyzed, considering the reversible field-induced redistribution of magnetostrictive antiferromagnetic S and T domains in the NiO(001). The authors find that a careful subtraction of the ordinary magnetoresistance contribution in Pt is crucial to determine the SMR amplitude and thus the Néel vector average orientation. [Phys. Rev. B 98, 024422] Published Tue Jul 24, 2018
Keywords:
Magnetism
Print ISSN:
1098-0121
Electronic ISSN:
1095-3795
Topics:
Physics
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