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Magnetic coupling in asymmetric FeCoV / Ru / FeNi trilayers
Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Solid State Physics.
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Molecular and condensed matter physics.
Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Solid State Physics.
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Molecular and condensed matter physics.ORCID iD: 0000-0001-5867-425X
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2014 (English)In: Journal of Applied Physics, Vol. 115, no 17, 17D129- p.Article in journal (Refereed) Published
Abstract [en]

We have investigated the magnetic anisotropy and interlayer coupling in trilayer films of permendur(100 \AA)/Ru/permalloy(100 \AA), with the thickness of the Ru spacer varying from 0 to 200 \AA. While the permendur/permalloy sample exhibits a small in-plane uniaxial magnetic anisotropy with Hu = 27 Oe, all trilayers are magnetically isotropic in-plane. Results from hysteresis loop and ferromagnetic resonance measurements were fitted to a micromagnetic model, with the results indicating that all the films are ferromagnetically coupled except the one with 10 \AA Ru spacer, which shows antiferromagnetic coupling. The trilayers with Ru spacer layer thickness larger than 20 \AA exhibit only very weak ferromagnetic coupling.

Place, publisher, year, edition, pages
2014. Vol. 115, no 17, 17D129- p.
National Category
Condensed Matter Physics Engineering and Technology
Research subject
Engineering Science with specialization in Solid State Physics
Identifiers
URN: urn:nbn:se:uu:diva-218308DOI: 10.1063/1.4864743ISI: 000335643700407OAI: oai:DiVA.org:uu-218308DiVA: diva2:695347
Available from: 2014-02-10 Created: 2014-02-10 Last updated: 2014-07-18Bibliographically approved

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Publisher's full texthttp://scitation.aip.org/content/aip/journal/jap/115/17/10.1063/1.4864743

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Wei, YajunJana, SomnathBrucas, RimantasPogoryelov, YevgenKaris, OlofSvedlindh, Peter

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Condensed Matter PhysicsEngineering and Technology

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