Please use this identifier to cite or link to this item: http://doi.org/10.25358/openscience-6264
Authors: Schmitt, Christin
Baldrati, Lorenzo
Sanchez-Tejerina, Luis
Schreiber, Felix
Ross, Andrew
Filianina, Mariia
Ding, Shilei
Fuhrmann, Felix
Ramos, Rafael
Maccherozzi, Francesco
Backes, Dirk
Mawass, Mohamad Assaad
Kronast, Florian
Valencia, Sergio
Saitoh, Eiji
Finocchio, Giovanni
Kläui, Mathias
Title: Identification of Néel vector orientation in antiferromagnetic domains switched by currents in NiO/Pt thin films
Online publication date: 9-Aug-2021
Language: english
Abstract: Understanding the electrical manipulation of the antiferromagnetic order is a crucial aspect to enable the design of antiferromagnetic devices working at THz frequencies. Focusing on collinear insulating antiferromagnetic NiO/Pt thin films as a materials platform, we identify the crystallographic orientation of the domains that can be switched by currents and quantify the Neel-vector direction changes. We demonstrate electrical switching between different T domains by current pulses, finding that the Neel-vector orientation in these domains is along [+/- 5 +/- 5 19], different compared to the bulk (112) directions. The final state of the in-plane component of the Neel vector nIP after switching by current pulses j along the [1 +/- 1 0] directions is nIP 11 j. By comparing the observed Neel-vector orientation and the strain in the thin films, assuming that this variation arises solely from magnetoelastic effects, we quantify the order of magnitude of the magnetoelastic coupling coefficient as b0 + 2b1 = 3 x 107J/m3. This information is key for the understanding of current-induced switching in antiferromagnets and for the design and use of such devices as active elements in spintronic devices.
DDC: 530 Physik
530 Physics
Institution: Johannes Gutenberg-Universität Mainz
Department: FB 08 Physik, Mathematik u. Informatik
Place: Mainz
DOI: http://doi.org/10.25358/openscience-6264
Version: Accepted version
Publication type: Zeitschriftenaufsatz
Document type specification: Scientific article
License: in Copyright
Information on rights of use: http://rightsstatements.org/vocab/InC/1.0/
Journal: Physical review applied
15
3
Pages or article number: 034047
Publisher: American Physical Society
Publisher place: College Park, Md.
Issue date: 2021
ISSN: 2331-7019
Publisher's URL: https://doi.org/10.1103/PhysRevApplied.15.034047
Appears in collections:JGU-Publikationen

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