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Title: A study on magnetic properties and structure of SmCo5 thin films on NiW underlayers
Authors: Zhang, L.N.
Hu, J.F.
Chen, J.S. 
Ding, J. 
Keywords: Magnetic recording
Thin films
Issue Date: Dec-2010
Citation: Zhang, L.N., Hu, J.F., Chen, J.S., Ding, J. (2010-12). A study on magnetic properties and structure of SmCo5 thin films on NiW underlayers. Journal of Magnetism and Magnetic Materials 322 (23) : 3737-3741. ScholarBank@NUS Repository.
Abstract: A systematic study on NiW alloy underlayers has shown that a highly textured (2 1 1)-Ni4W can be formed after deposition at room temperature. Highly textured (0 0 0 1)-SmCo5 with a high out-of-plane coercivity (over 10 kOe) and large perpendicular anisotropy can be obtained after deposition on the (2 2 1)-Ni4W underlayer probably due to a small mismatch between (2 2 1)-Ni4W and (0 0 0 1)-SmCo5. Our study indicates that the surface roughness of the underlayers also plays a crucial role, that a smooth surface is favorable for a good crystallinity and high coercivity of SmCo5. Moreover, we found that a highly textured Ni-(1 1 1) can be obtained on the top of the (2 1 1)-textured Ni4W. The film structure of SmCo5/Ni/Ni4W may be interesting as the hard/soft double-layered film for perpendicular magnetic recording or for other applications after a further development. © 2010 Elsevier B.V. © 2010 Elsevier B.V. All rights reserved.
Source Title: Journal of Magnetism and Magnetic Materials
ISSN: 03048853
DOI: 10.1016/j.jmmm.2010.07.016
Appears in Collections:Staff Publications

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