Tailoring of the perpendicular magnetization component in ferromagnetic films on a vicinal substrate

We have engineered the magnetic properties of 1-8 nm Co films epitaxially grown on an Au-buffered bifacial W(110)/W(540) single crystal. The surface of Au/W(110) was atomically flat, whereas the Au/W(540) followed the morphology of the vicinal W surface, showing a regular array of monoatomic steps....

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Published inPhysical review letters Vol. 101; no. 21; p. 217202
Main Authors Stupakiewicz, A, Maziewski, A, Matlak, K, Spiridis, N, Slezak, M, Slezak, T, Zajac, M, Korecki, J
Format Journal Article
LanguageEnglish
Published United States 21.11.2008
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Summary:We have engineered the magnetic properties of 1-8 nm Co films epitaxially grown on an Au-buffered bifacial W(110)/W(540) single crystal. The surface of Au/W(110) was atomically flat, whereas the Au/W(540) followed the morphology of the vicinal W surface, showing a regular array of monoatomic steps. For Co grown on Au/W(540), the existence of the out-of-plane magnetization component extended strongly to a thickness d of about 8 nm, which was accompanied by an anomalous increase of the out-of-plane switching field with increasing d. In addition, the process of up-down magnetization switching could be realized with both a perpendicular and in-plane external magnetic field.
ISSN:0031-9007
DOI:10.1103/PhysRevLett.101.217202