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Co-Cr-Ta並びにCo-Cr垂直磁化膜の磁化特性とMFM観察 MagneticProperties and MFM Observation of Co-Cr-Ta and Co-Cr Thin Films with Perpendicular Magnetic Anisotropy 石尾, 俊二 岡本, 透 阿部, 寛 斎藤, 準 大内, 一弘 ISHIO, S OKAMOTO, T ABE, H SAITO, H OUCHI, K open access magnetic force microscopy MFM magnetic domain perpendicular magnetic anisotropy magnetization curve anisotropie magnetic field Magnetic proroperties and domainstructures have been investigated for Co80 Cr16 Ta, and Co80 Cr20 films with perpendicular magnetic anisotropy. MFM observation for the remanent magnetization state shows a bright-dark contrast with a mean wavelength of 0.4-0.6〟m for the films prepared at the substrate temperature Ts>500K and a maize type domain pattern for the films prepared at room temperature. The magnetization process is understood as the domain wall movement for the films with Ts～300K and the irreversible rotation of magnetization of single domain particles for the films with Ts>500K. The relation between the bright-dark contrast observed by MFM and the magnetic icrostructure is discussed. 日本素材物性学会 1997-08-01 jpn journal article VoR http://hdl.handle.net/10295/799 https://air.repo.nii.ac.jp/records/989 素材物性学雑誌 10 1 45 53 https://air.repo.nii.ac.jp/record/989/files/ishio-1.pdf application/pdf 875.8 kB 2017-02-16