Gutenberg Open Science: Readout of an antiferromagnetic spintronics system by strong exchange coupling of Mn2Au and Permalloy

Please use this identifier to cite or link to this item: http://doi.org/10.25358/openscience-6707

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DC Field	Value	Language
dc.contributor.author	Bommanaboyena, Satya Prakash	-
dc.contributor.author	Backes, Dirk	-
dc.contributor.author	Veiga, L. S. I.	-
dc.contributor.author	Dhesi, Sarnjeet S.	-
dc.contributor.author	Niu, Yuran R.	-
dc.contributor.author	Sarpi, Brice	-
dc.contributor.author	Denneulin, Thibaud	-
dc.contributor.author	Kovács, András	-
dc.contributor.author	Mashoff, Torge	-
dc.contributor.author	Gomonay, Olena	-
dc.contributor.author	Sinova, Jairo	-
dc.contributor.author	Everschor-Sitte, Karin	-
dc.contributor.author	Schönke, Daniel	-
dc.contributor.author	Reeve, Robert M.	-
dc.contributor.author	Kläui, Mathias	-
dc.contributor.author	Elmers, Hans-Joachim	-
dc.contributor.author	Jourdan, Martin	-
dc.date.accessioned	2022-01-19T07:54:43Z	-
dc.date.available	2022-01-19T07:54:43Z	-
dc.date.issued	2021	-
dc.identifier.uri	https://openscience.ub.uni-mainz.de/handle/20.500.12030/6717	-
dc.description.abstract	In antiferromagnetic spintronics, the read-out of the staggered magnetization or Neel vector is the key obstacle to harnessing the ultra-fast dynamics and stability of antiferromagnets for novel devices. Here, we demonstrate strong exchange coupling of Mn2Au, a unique metallic antiferromagnet that exhibits Neel spin-orbit torques, with thin ferromagnetic Permalloy layers. This allows us to benefit from the well-established read-out methods of ferromagnets, while the essential advantages of antiferromagnetic spintronics are only slightly diminished. We show one-to-one imprinting of the antiferromagnetic on the ferromagnetic domain pattern. Conversely, alignment of the Permalloy magnetization reorients the Mn2Au Neel vector, an effect, which can be restricted to large magnetic fields by tuning the ferromagnetic layer thickness. To understand the origin of the strong coupling, we carry out high resolution electron microscopy imaging and we find that our growth yields an interface with a well-defined morphology that leads to the strong exchange coupling. Antiferromagnets offer faster operation speed and immunity to stray fields, however, readout of the Neel vector is difficult. Here, Bommanaboyena et al present a heterostructure of a ferromagnet and antiferromagnet, combining easy readout with the benefits of antiferromagnetic spintronics.	en_GB
dc.language.iso	eng	de
dc.rights	CC BY	*
dc.rights.uri	https://creativecommons.org/licenses/by/4.0/	*
dc.subject.ddc	530 Physik	de_DE
dc.subject.ddc	530 Physics	en_GB
dc.title	Readout of an antiferromagnetic spintronics system by strong exchange coupling of Mn2Au and Permalloy	en_GB
dc.type	Zeitschriftenaufsatz	de
dc.identifier.doi	http://doi.org/10.25358/openscience-6707	-
jgu.type.contenttype	Scientific article	de
jgu.type.dinitype	article	en_GB
jgu.type.version	Published version	de
jgu.type.resource	Text	de
jgu.organisation.department	FB 08 Physik, Mathematik u. Informatik	de
jgu.organisation.number	7940	-
jgu.organisation.name	Johannes Gutenberg-Universität Mainz	-
jgu.rights.accessrights	openAccess	-
jgu.journal.title	Nature Communications	de
jgu.journal.volume	12	de
jgu.pages.alternative	6539	de
jgu.publisher.year	2021	-
jgu.publisher.name	Nature Publishing Group UK	de
jgu.publisher.place	London	de
jgu.publisher.uri	https://doi.org/10.1038/s41467-021-26892-7	de
jgu.publisher.issn	2041-1723	de
jgu.organisation.place	Mainz	-
jgu.subject.ddccode	530	de
jgu.publisher.doi	10.1038/s41467-021-26892-7	-
jgu.organisation.ror	https://ror.org/023b0x485	-
Appears in collections:	JGU-Publikationen

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