FePtC magnetic recording media with (200) textured MoC intermediate layer
- Department of Materials Science and Engineering, National Chung Hsing University, Taichung 402, Taiwan (China)
The FePt films with thickness of 4–10 nm were deposited on MoC/CrRu/glass at 425 °C by using magnetron sputtering. The Mo{sub 40}C{sub 60} target was used to form the MoC and C two phases after deposition. The MoC intermediate layer was epitaxially grown on the (200) textured CrRu seed layer at 425 °C and the MoC (200) diffraction peak was not clearly indexed below 10 nm but observed at 25 nm. Finally, the FePt film was prepared on (200) textured MoC at 425 °C and shown the strong (001) texture. Perpendicular anisotropy of 1.7 × 10{sup 7} erg/cm{sup 3} and out-of-plane coercivity of 7.5 kOe has been demonstrated in 10 nm thick FePt film. From microstructure, the FePt grains were distributed in- or between-islands like structure and further separated by excess carbon from MoC intermediate layer. Thinner FePt film was more separated by excess carbon and shown higher coercivity.
- OSTI ID:
- 22410010
- Journal Information:
- Journal of Applied Physics, Vol. 117, Issue 17; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0021-8979
- Country of Publication:
- United States
- Language:
- English
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