Microstructure and Magnetic Properties of Sputter-Deposited Ho-Co Alloy Thin Films with Perpendicular Magnetic Anisotropy
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概要
- 論文の詳細を見る
The structures of Ho_<19>Co_<81> thin films fabricated by r.f. sputtering in Ar atmosphere are discussed. Electron microscopic observation shows that a columnar structure is developed along the direction of the film thickness. Each column is largely amorphous but contains locally-microcrystalline regions 30-50 Å in size. A high-resolution photograph of the lattice image indicates that these microcrystalline regions very likely consist of HoCo_5 in a short range, and that the hexagonal c-axis is nearly directed along the thickness direction. It is suggested that the presence of such microcrystalline regions may need to be taken into account in discussing the origin of the observed perpendicular magnetic anisotropy in rare-earth transition metal amorphous films.
- 社団法人応用物理学会の論文
- 1984-05-20
著者
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SUZUKI Takao
Department of Applied Physics, Tohoku University
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Ichinose Hideki
The Institute Of Industrial Science Tokyo University
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Aoyagi Eiji
High-voltage Electron Microscope Laboratory Tohoku University
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Suzuki Takao
Department Of Applied Physics Tohoku University
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Suzuki Takao
Department Of Anatomical Science Hirosaki University Graduate School Of Medicine
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SUZUKI Takao
Department of Agricultural Chemistry, Tokyo University of Agriculture
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