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Fe/V and Fe/Co (001) superlattices: growth, anisotropy, magnetisation and magnetoresistance

P. Nordblad·A. Broddefalk·R. Mathieu·P. Blomqvist·O. Eriksson·R. Wäppling
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Abstract

Some physical properties of bcc Fe/V and Fe/Co (001) 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 layer thickness V (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.

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P. Nordblad, A. Broddefalk, R. Mathieu, P. Blomqvist, O. Eriksson, R. Wäppling. 2002-08-12. Fe/V and Fe/Co (001) superlattices: growth, anisotropy, magnetisation and magnetoresistance. https://doi.org/10.1016/s0921-4526(02)01783-0

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