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Fe/V and Fe/Co(001) superlattices: growth, anisotropy, magnetisation and magnetoresistance
Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Technology, Department of Engineering Sciences. Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Physics, Department of Physics and Materials Science, Theoretical Magnetism. Technology, Department of Engineering Sciences, Solid State Physics. Fasta tillståndets fysik.
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2003 (English)In: PHYSICA B-CONDENSED MATTER, ISSN 0921-4526, Vol. 327, no 2-4, 344- p.Article in journal (Refereed) Published
Abstract [en]

Some physical properties of BCC Fe/V and Fe/Co (0 0 1) superlattices are reviewed. The dependence of the magnetic anisotropy on the in-plane strain introduced by the lattice mismatch between Fe and V is measured and compared to a theoretical derivation. The dependence of the magnetic anisotropy (and saturation magnetisation) on the layer thickness ratio Fe/Co is measured and a value for the anisotropy of BCC Co is derived from extrapolation. The interlayer exchange coupling of Fe/V superlattices is studied as a function of the V layer thickness (constant Fe thickness) and layer thickness of Fe (constant V thickness). A region of antiferromagnetic coupling and GMR is found for V thicknesses 12-14 monolayers. However, surprisingly, a 'cutoff' of the antiferromagnetic coupling and GMR is found when the iron layer thickness exceeds about 10 monolayers.

Place, publisher, year, edition, pages
2003. Vol. 327, no 2-4, 344- p.
Keyword [en]
magnetic superlattices, anisotropy, magnetisation, GMR, Fe, Co, giant magnetoresistance, 001 superlattices, interlayer
National Category
Condensed Matter Physics
Identifiers
URN: urn:nbn:se:uu:diva-20325DOI: doi:10.1016/S0921-4526(02)01783-0OAI: oai:DiVA.org:uu-20325DiVA: diva2:48098
Available from: 2007-02-22 Created: 2007-02-22 Last updated: 2011-01-13

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Nordblad, PerEriksson, Olle

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