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
ROR:	https://ror.org/023b0x485
DOI:	http://doi.org/10.25358/openscience-5255
Version:	Accepted version
Publication type:	Zeitschriftenaufsatz
Document type specification:	Scientific article
License:	In Copyright
Information on rights of use:	https://rightsstatements.org/vocab/InC/1.0/
Journal:	Physical review letters 125 7
Pages or article number:	Art. 077201
Publisher:	American Physical Society
Publisher place:	Ridge, NY
Issue date:	2020
ISSN:	0031-9007
Publisher URL:	https://doi.org/10.1103/PhysRevLett.125.077201
Publisher DOI:	10.1103/PhysRevLett.125.077201
Appears in collections:	JGU-Publikationen