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Authors: Baldrati, Lorenzo
Schmitt, Christin
Gomonay, Olena
Lebrun, Romain
Ramos, Rafael
Saitoh, Eiji
Sinova, Jairo
Kläui, Mathias
Title: Efficient spin torques in antiferromagnetic CoO/Pt quantified by comparing field- and current-induced switching
Online publication date: 29-Oct-2020
Year of first publication: 2020
Language: english
Abstract: We achieve current-induced switching in collinear insulating antiferromagnetic CoO/Pt, with fourfold in-plane magnetic anisotropy. This is measured electrically by spin Hall magnetoresistance and confirmed by the magnetic field-induced spin-flop transition of the CoO layer. By applying current pulses and magnetic fields, we quantify the efficiency of the acting current-induced torques and estimate a currentfield equivalence ratio of 4 x 10(-11) T A(-1) m(2). The Neel vector final state (n perpendicular to j) is in line with a thermomagnetoelastic switching mechanism for a negative magnetoelastic constant of the CoO.
DDC: 530 Physik
530 Physics
Institution: Johannes Gutenberg-Universität Mainz
Department: FB 08 Physik, Mathematik u. Informatik
Place: Mainz
Version: Accepted version
Publication type: Zeitschriftenaufsatz
Document type specification: Scientific article
License: In Copyright
Information on rights of use:
Journal: Physical review letters
Pages or article number: Art. 077201
Publisher: American Physical Society
Publisher place: Ridge, NY
Issue date: 2020
ISSN: 0031-9007
Publisher URL:
Publisher DOI: 10.1103/PhysRevLett.125.077201
Appears in collections:JGU-Publikationen

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