The uniaxial magnetization of epitaxial permalloy(001) films on Cu/Si(001) (マルチメディアストレージ--第5回アジア情報記録技術シンポジウム)

概要

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Epitaxial Permalloy film is grown on Cu/Si(001). The buffer layer of Cu(001)(1×1) can be stabilized on the unreconstructed(1×1) surface mesh of Si(001) by simply rotating 45° to reduce the lattice mismatch, and a Si(001)√<2>×√<2>R45°-Cu surface is therefore resulted. The structure of permalloy (Py) is face center cubic (FCC) with lattice parameter close to FCC-Cu, Thus, the Py mesh can sit directly on the top of reconstructed Cu(001)/Si(001) surface to form FCC-Py(001) epitaxy. The Py(001) film is found to be magnetized in the plane with the easy and hard magnetic axes parallel to Py[010], and Py[100], respectively, The in-plane uniaxial behavior could be due to the smll lattice mismatch which breaks the 4-fold symmetry.
社団法人映像情報メディア学会の論文
2000-11-16