日本応用磁気学会誌
Online ISSN : 1880-4004
Print ISSN : 0285-0192
ISSN-L : 0285-0192
磁気記録媒体
Cu-FeCo酸化物グラニュラー薄膜の磁気特性
金井 泰久河井 辰司
著者情報
ジャーナル オープンアクセス

2000 年 24 巻 4_2 号 p. 319-322

詳細
抄録

Using dc-magnetron sputtering, Fe, Co, and Cu were sputtered on a glass substrate. The samples were annealed at 500°C in a vacuum, air, or nitrogen atmosphere. It was found that the samples annealed in nitrogen showed a coercive force of over 200 kA/m.
Hysteresis loop measurements and the results of ESCA and X-ray diffraction analysis seem to suggest that Co-Fe2O4 ferrite was the major magnetic component formed by the residual oxygen during annealing.
On this assumption, the O2 pressure during annealing was altered, and it was found that the coercive force increases as the oxygen pressure decreases, and that it reaches 115 kA/m when the oxygen pressure is about 8 m Torr.

著者関連情報
© 2000 (社)日本応用磁気学会
前の記事 次の記事
feedback
Top