Formation of Ferromagnetic MnAl Layers by Ion Beam Mixing

概要

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It is first demonstrated that the ferromagnetic MnAl layers are formed directly by ion beam induced mixing with 400 keV Xe^+ ions. Their magnetic properties strongly depend on the ion dose and the substrate temperature during ion irradiation. A characteristic spectral line originating from the metastable τ phase with ferromagnetism is observed in the X-ray diffraction measurement. The results obtained lead to the conclusion that the dynamical collision cascades assisted by the enhanced diffusion are the decisive factors forming the ferromagnetic MnAl layers.
社団法人応用物理学会の論文
1987-11-20