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Imaging of current induced Néel vector switching in antiferromagnetic Mn 2 Au

DOI: 10.1103/PhysRevB.99.140409 DOI Help

Authors: S. Yu. Bodnar (Johannes Gutenberg-University) , M. Filianina (Johannes Gutenberg-University; Graduate School Materials Science in Mainz) , S. P. Bommanaboyena (Johannes Gutenberg-University) , T. Forrest (Diamond Light Source) , F. Maccherozzi (Diamond Light Source) , A. A. Sapozhnik (Johannes Gutenberg-University; Graduate School Materials Science in Mainz) , Y. Skourski (HLD-EMFL, Helmholtz-Zentrum Dresden-Rossendorf) , M. Klaui (Johannes Gutenberg-University; Graduate School Materials Science in Mainz) , M. Jourdan (Johannes Gutenberg-University; Graduate School Materials Science in Mainz)
Co-authored by industrial partner: No

Type: Journal Paper
Journal: Physical Review B , VOL 99

State: Published (Approved)
Published: April 2019
Diamond Proposal Number(s): 20534

Abstract: The effects of current induced Néel spin-orbit torques on the antiferromagnetic domain structure of epitaxial Mn2Au thin films were investigated by x-ray magnetic linear dichroism–photoemission electron microscopy.We observed current induced switching of antiferromagnetic domains essentially corresponding to morphological features of the samples. Reversible as well as irreversible Néel vector reorientation was obtained in different parts of the samples and the switching of up to 30% of all domains in the field of view of 10 μm is demonstrated. Our direct microscopical observations are compared to and fully consistent with anisotropic magnetoresistance effects previously attributed to current induced Néel vector switching in Mn2Au.

Journal Keywords: antiferromagnetic spintronics; Neel spin orbit torques; XMLD-PEEM

Subject Areas: Physics, Materials


Instruments: I06-Nanoscience