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Magnetic anisotropy of epitaxial Co2Fe-Ge Heusler alloy films on MgO (100) substrates
KTH, School of Engineering Sciences (SCI), Applied Physics, Nanostructure Physics.
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2017 (English)In: AIP Advances, ISSN 2158-3226, E-ISSN 2158-3226, Vol. 7, no 5, 055831Article in journal (Refereed) Published
Abstract [en]

Films of Co2Fe-Ge Heusler alloy with variable Ge concentration deposited on monocrystalline MgO (100) substrates by magnetron co-sputtering are investigated using microstructural, morphological, magnetometric, and magnetic resonance methods. The films were found to grow epitaxially, with island-like or continuous-layer morphology depending the Ge-content. The ferromagnetic resonance data versus out-of-plane and in-plane angle indicate the presence of easy plane and 4-fold in-plane anisotropy. The magnetometry data indicate additional weak 2-fold in-plane anisotropy and pronounced at low fields rotatable anisotropy. The observed magnetic anisotropy properties discussed in correlation with the microstructure and morphology of the films.

Place, publisher, year, edition, pages
American Institute of Physics Inc. , 2017. Vol. 7, no 5, 055831
Keyword [en]
Anisotropy, Carbon dioxide, Cobalt, Germanium, Germanium alloys, Magnetic resonance, Magnetism, Magnetrons, Anisotropy property, Continuous layers, Ge concentrations, Heusler alloy films, In-plane anisotropy, Magnetron co-sputtering, Micro-structural, Rotatable anisotropy, Magnetic anisotropy
National Category
Physical Sciences
Identifiers
URN: urn:nbn:se:kth:diva-207340DOI: 10.1063/1.4978209ISI: 000402797100114Scopus ID: 2-s2.0-85014550511OAI: oai:DiVA.org:kth-207340DiVA: diva2:1106370
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QC 20170607

Available from: 2017-06-07 Created: 2017-06-07 Last updated: 2017-07-03Bibliographically approved

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Kravets, Anatolii

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