Authors:	Meer, Hendrik Gomonay, Olena Schmitt, Christin Ramos, Rafael Schnitzspan, Leo Kronast, Florian Mawass, Mohamad-Assaad Valencia, Sergio Saitoh, Eiji Sinova, Jairo Baldrati, Lorenzo Kläui, Mathias
Title:	Strain-induced shape anisotropy in antiferromagnetic structures
Online publication date:	16-May-2023
Year of first publication:	2022
Language:	english
Abstract:	We demonstrate how shape-dependent strain can be used to control antiferromagnetic order in NiO/Pt thin films. For rectangular elements patterned along the easy and hard magnetocrystalline anisotropy axes of our film, we observe different domain structures and we identify magnetoelastic interactions that are distinct for different domain configurations. We reproduce the experimental observations by modeling the magnetoelastic interactions, considering spontaneous strain induced by the domain configuration, as well as elastic strain due to the substrate and the shape of the patterns. This allows us to demonstrate and explain how the variation of the aspect ratio of rectangular elements can be used to control the antiferromagnetic ground-state domain configuration. Shape-dependent strain does not only need to be considered in the design of antiferromagnetic devices, but can potentially be used to tailor their properties, providing an additional handle to control antiferromagnets.
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-9092
Version:	Published version
Publication type:	Zeitschriftenaufsatz
License:	In Copyright
Information on rights of use:	http://rightsstatements.org/vocab/InC/1.0/
Journal:	Physical review : B 106 9
Pages or article number:	094430
Publisher:	APS
Publisher place:	Ridge, NY
Issue date:	2022
ISSN:	2469-9950
Publisher DOI:	10.1103/PhysRevB.106.094430
Appears in collections:	JGU-Publikationen