Highly textured SmCo{sub 5} (001) thin film with high coercivity
- Department of Materials Science and Engineering, National University of Singapore, Singapore 117574 (Singapore)
- Data Storage Institute, 5 Engineering Drive 1, Singapore 117608 (Singapore)
The seedlayer effect on crystallographic structure and magnetic properties of cosputtered SmCo films on Cu underlayer was investigated. Highly textured (001) SmCo{sub 5} thin films were obtained by introducing a thin Ti or Ta seedlayer. Especially, with the Ta seedlayer, the half maximum of the rocking curve of SmCo (001) peak was as small as 3.4 deg. and the high-index SmCo{sub 5} (003) diffraction peak was clearly observed, showing a high quality of texture and crystallinity. The SmCo{sub 5} films showed a large perpendicular anisotropy with out-of-plane coercivities over 20 kOe. Well crystallized SmCo{sub 5} films with (001) texture could be obtained at a temperature as low as 325 deg. C. The crystallinity, (001) texture, and magnetic properties of SmCo{sub 5} thin films were found to be dependent on deposition temperature, the texture of the Cu (111) underlayer, roughness of the Cu underlayer, and formation of SmCoCu alloy through the Cu diffusion.
- OSTI ID:
- 21185895
- Journal Information:
- Journal of Applied Physics, Vol. 104, Issue 9; Other Information: DOI: 10.1063/1.3009318; (c) 2008 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0021-8979
- Country of Publication:
- United States
- Language:
- English
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