1999年
Structure and magnetic properties of co-sputtered Co-C thin films
Journal of Magnetism and Magnetic Materials
- ,
- ,
- ,
- 巻
- 195
- 号
- 1
- 開始ページ
- 9
- 終了ページ
- 18
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1016/S0304-8853(98)01160-3
- 出版者・発行元
- Elsevier Science Publishers B.V.
We studied the structure and magnetic properties of co-sputtered Co1-xCx thin films using a transmission electron microscope (TEM) and a SQUID magnetometer. These properties were found to depend critically on deposition temperature, TS, and composition, x. Generally, phase separation into metallic Co and graphite-like carbon phases proceeds with increasing TS and decreasing x. Plan view and cross-sectional TEM images of the films prepared showed that Co grains about 10-20 nm in diameter and 30-50 nm in height are three-dimensionally separated by graphite-like carbon layers 1-2 nm thick. Optimum magnetic properties with saturation magnetization of 380 emu/cc and coercivity of 400 Oe were obtained for a film with x = 0.5 and TS = 350 °C.
- ID情報
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- DOI : 10.1016/S0304-8853(98)01160-3
- ISSN : 0304-8853
- SCOPUS ID : 0033515344