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The magnetization profile induced by the double magnetic proximity effect in an Fe/Fe0.30V0.70 superlattice
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Materials Physics.ORCID iD: 0000-0002-0685-2277
Natl Univ Sci & Technol MISIS, Mat Modeling & Dev Lab, Moscow 119049, Russia.
Natl Univ Sci & Technol MISIS, Mat Modeling & Dev Lab, Moscow 119049, Russia.
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Materials Physics.
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2019 (English)In: Applied Physics Letters, ISSN 0003-6951, E-ISSN 1077-3118, Vol. 115, no 1, article id 012406Article in journal (Refereed) Published
Abstract [en]

The double magnetic proximity effect (MPE) in an Fe/Fe0.30V0.70 superlattice is studied by a direct measurement of the magnetization profile using polarized neutron reflectivity. The experimental magnetization profile is shown to qualitatively agree with a profile calculated using density functional theory. The profile is divided into a short range interfacial part and a long range tail. The interfacial part is explained by charge transfer and induced magnetization, while the tail is attributed to the inhomogeneous nature of the FeV alloy. The long range tail in the magnetization persists up to 170% above the intrinsic ordering temperature of the FeV alloy. The observed effects can be used to design systems with a direct exchange coupling between layers over long distances through a network of connected atoms. When combined with the recent advances in tuning and switching, the MPE with electric fields and currents, the results can be applied in spintronic devices. Published under license by AIP Publishing.

Place, publisher, year, edition, pages
American Institute of Physics (AIP), 2019. Vol. 115, no 1, article id 012406
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Condensed Matter Physics
Identifiers
URN: urn:nbn:se:uu:diva-390904DOI: 10.1063/1.5102121ISI: 000474211400020OAI: oai:DiVA.org:uu-390904DiVA, id: diva2:1343913
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Swedish Research CouncilAvailable from: 2019-08-19 Created: 2019-08-19 Last updated: 2019-08-19Bibliographically approved

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Palonen, HeikkiPálsson, Gunnar K.Hjörvarsson, Björgvin

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