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On the sharpness of the interfaces in metallic multilayers
KTH, Superseded Departments, Materials Science and Engineering.ORCID iD: 0000-0003-4341-5663
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2004 (English)In: Proceedings of the National Academy of Sciences of the United States of America, ISSN 0027-8424, E-ISSN 1091-6490, Vol. 101, no 14, 4742- p.Article in journal (Refereed) Published
Abstract [en]

We show that the three most relevant magnetic properties (magnetic moment, critical temperature, and interlayer exchange coupling) of metallic multilayers can be reproduced with good accuracy by first principles theory, provided that the picture of atomically sharp interfaces is abandoned and one allows instead for both interface alloying and interface roughness. The interface of a metallic multilayer (exemplified by the Fe/V system) is demonstrated to, at best, have interdiffusion essentially over two to three atomic layers on each side of the interface. Our conclusions are the result of combining experimental work with theoretical modeling, and we argue that this approach is the best avenue to obtain accurate information about the interface quality of metallic multilayers.

Place, publisher, year, edition, pages
2004. Vol. 101, no 14, 4742- p.
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Condensed Matter Physics
URN: urn:nbn:se:kth:diva-65544DOI: 10.1073/pnas.0305313101ISI: 000220761200006OAI: diva2:483445
QC 20120305Available from: 2012-01-25 Created: 2012-01-25 Last updated: 2012-03-05Bibliographically approved

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Bergqvist, Lars
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