On the sharpness of the interfaces in metallic multilayers

Bergqvist, Lars (author): KTH,Uppsala universitet,Fysiska institutionen,Materialvetenskap

(creator_code:org_t)

2004-03-26
2004
English.
In: Proceedings of the National Academy of Sciences of the United States of America. - : Proceedings of the National Academy of Sciences. - 0027-8424 .- 1091-6490. ; 101:14, s. 4742-4745

Related links:: http://www.pnas.org/...; show more...; https://urn.kb.se/re...; https://doi.org/10.1...; https://urn.kb.se/re...; show less...

Abstract Subject headings

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.

By the author/editor: Holmström, Erik; Nordström, Lars; Bergqvist, Lars; Skubic, Björn; Hjörvarsson, Bjö ...; Abrikosov, Igor; show more...; Svedlindh, Peter; Eriksson, Olle; show less...

About the subject

NATURAL SCIENCES: NATURAL SCIENCES; and Physical Science ...; and Condensed Matter ...

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