Autoren:	Grigorev, Vladimir Filianina, Mariia Lytvynenko, Yaryna Sobolev, Sergei Pokharel, Amrit Raj Lanz, Amon P. Sapozhnik, Alexey Kleibert, Armin Bodnar, Stanislav Grigorev, Petr Skourski, Yurii Käeui, Mathias Elmers, Hans-Joachim Jourdan, Martin Demsar, Jure
Titel:	Optically triggered Neel vector manipulation of a metallic antiferromagnet Mn2Au under strain
Online-Publikationsdatum:	15-Mär-2023
Erscheinungsdatum:	2022
Sprache des Dokuments:	Englisch
Zusammenfassung/Abstract:	The absence of stray fields, their insensitivity to external magnetic fields, and ultrafast dynamics make antiferromagnets promising candidates for active elements in spintronic devices. Here, we demonstrate manipulation of the Neel vector in the metallic collinear antiferromagnet Mn2Au by combining strain and femtosecond laser excitation. Applying tensile strain along either of the two in-plane easy axes and locally exciting the sample by a train of femtosecond pulses, we align the Neel vector along the direction controlled by the applied strain. The dependence on the laser fluence and strain suggests the alignment is a result of optically triggered depinning of 90 degrees domain walls and their motion in the direction of the free energy gradient, governed by the magneto-elastic coupling. The resulting, switchable state is stable at room temperature and insensitive to magnetic fields. Such an approach may provide ways to realize robust high-density memory device with switching time scales in the picosecond range.
DDC-Sachgruppe:	530 Physik 530 Physics
Veröffentlichende Institution:	Johannes Gutenberg-Universität Mainz
Organisationseinheit:	FB 08 Physik, Mathematik u. Informatik
Veröffentlichungsort:	Mainz
ROR:	https://ror.org/023b0x485
DOI:	http://doi.org/10.25358/openscience-8705
Version:	Accepted version
Publikationstyp:	Zeitschriftenaufsatz
Weitere Angaben zur Dokumentart:	Scientific article
Nutzungsrechte:	Urheberrechtsschutz
Informationen zu den Nutzungsrechten:	http://rightsstatements.org/vocab/InC/1.0/
Zeitschrift:	ACS Nano 16 12
Seitenzahl oder Artikelnummer:	20589 20597
Verlag:	American Chemical Society
Verlagsort:	Washington, DC
Erscheinungsdatum:	2022
ISSN:	1936-0851
DOI der Originalveröffentlichung:	10.1021/acsnano.2c07453
Enthalten in den Sammlungen:	JGU-Publikationen