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Reduction of magnetic grain size of perpendicular recording media with CoCrW seed layer

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4 Author(s)
Inamura, R. ; Media Laboratory, Fujitsu Laboratories Ltd., 10-1 Morinosato-wakamiya, Atsugi 234-0197, Japan ; Toyoda, T. ; Tanaka, T. ; Uzumaki, T.

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We report the use of CoCrW seed layer (SL) for making the fine grain granular structure and high crystalline orientation of CoCrPt-oxide magnetic recording layer. It is found that CoCrW SL should be of amorphouslike structure to make fine grain of CoCrPt-oxide magnetic layer. Moreover, the smooth surface of CoCrW SL provides high crystalline orientation of the CoCrPt-oxide magnetic layer.

Published in:

Journal of Applied Physics  (Volume:105 ,  Issue: 7 )