Universität zu Köln

Wysocki, Lena ORCID: 0000-0002-7540-2683, Ilse, Sven Erik ORCID: 0000-0003-2156-887X, Yang, Lin ORCID: 0000-0001-5175-8629, Goering, Eberhard, Gunkel, Felix ORCID: 0000-0003-1178-9986, Dittmann, Regina ORCID: 0000-0003-1886-1864, van Loosdrecht, Paul H. M. and Lindfors-Vrejoiu, Ionela (2022). Magnetic interlayer coupling between ferromagnetic SrRuO3 layers through a SrIrO3 spacer. J. Appl. Phys., 131 (13). MELVILLE: AIP Publishing. ISSN 1089-7550

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Abstract

A key element to tailor the properties of magnetic multilayers is the coupling between the individual magnetic layers. In the case of skyrmion hosting multilayers, coupling of skyrmions across the magnetic layers is highly desirable. Here, the magnetic interlayer coupling was studied in epitaxial all-oxide heterostructures of ferromagnetic perovskite SrRuO 3 layers separated by spacers of the strong spin-orbit coupling oxide SrIrO 3. This combination of oxide layers is being discussed as a potential candidate system to host Neel skyrmions. First order reversal curve (FORC) measurements were performed in order to distinguish between magnetic switching processes of the individual layers and to disentangle the signal of soft magnetic impurities from the sample signal. Additionally, FORC investigations enabled us to determine whether the coupling between the magnetic layers is ferromagnetic or antiferromagnetic. The observed interlayer coupling strength was very weak for the heterostructure with a two monolayer (ML) thick SrIrO3 spacer, and no coupling was observed for spacers of 6 and 12 ML thickness. The decoupling of the magnetic SrRuO3 layers due to the SrIrO3 spacer is a disadvantage for the study of skyrmions in such multilayers and indicates that other oxides have to be identified for realizing strong magnetic coupling. Published under an exclusive license by AIP Publishing

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Wysocki, Lena UNSPECIFIED orcid.org/0000-0002-7540-2683 UNSPECIFIED Ilse, Sven Erik UNSPECIFIED orcid.org/0000-0003-2156-887X UNSPECIFIED Yang, Lin UNSPECIFIED orcid.org/0000-0001-5175-8629 UNSPECIFIED Goering, Eberhard UNSPECIFIED UNSPECIFIED UNSPECIFIED Gunkel, Felix UNSPECIFIED orcid.org/0000-0003-1178-9986 UNSPECIFIED Dittmann, Regina UNSPECIFIED orcid.org/0000-0003-1886-1864 UNSPECIFIED van Loosdrecht, Paul H. M. UNSPECIFIED UNSPECIFIED UNSPECIFIED Lindfors-Vrejoiu, Ionela UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-675515
DOI:	10.1063/5.0087098
Journal or Publication Title:	J. Appl. Phys.
Volume:	131
Number:	13
Date:	2022
Publisher:	AIP Publishing
Place of Publication:	MELVILLE
ISSN:	1089-7550
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language LOOPS; MULTILAYERS; BEHAVIOR Multiple languages Physics, Applied Multiple languages
URI:	http://kups.ub.uni-koeln.de/id/eprint/67551