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Element-specific magnetic moments in bcc Fe81Ni19/Co superlattices
Uppsala Universitet. (Materialkemi)
KTH, School of Industrial Engineering and Management (ITM), Materials Science and Engineering, Applied Material Physics.ORCID iD: 0000-0002-9920-5393
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2005 (English)In: Physical Review B. Condensed Matter and Materials Physics, ISSN 1098-0121, E-ISSN 1550-235X, Vol. 72, no 13, 134409- p.Article in journal (Refereed) Published
Abstract [en]

The magnetic moments in bcc Fe81Ni19/Co(001) superlattices with the individual layer thickness of 2-6 monolayers were studied by means of soft x-ray magnetic circular dichroism. It was found that the magnetic moment was enhanced in the Fe81Ni19 layer by about 0.35 mu(B)/atom as compared to the bulk value, while the Co moment remained unaffected by the presence of interfaces. The extension of the region with the high Fe81Ni19 moment in our samples was found to be at least 3 monolayers from the interfaces. Possible sources of the Fe81Ni19 moment enhancement were considered in ab initio calculations, and it was concluded that the enhanced moment may be explained by intermixing and formation of a B2-type short-range order at the interfaces.

Place, publisher, year, edition, pages
2005. Vol. 72, no 13, 134409- p.
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Physical Sciences
URN: urn:nbn:se:kth:diva-38471DOI: 10.1103/PhysRevB.72.134409ISI: 000232933700059ScopusID: 2-s2.0-29844456513OAI: diva2:437198
QC 20110826Available from: 2011-08-26 Created: 2011-08-26 Last updated: 2012-02-28Bibliographically approved

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Soroka, InnaKorzhavyi, Pavel A.
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