Orientation-controlled nonepitaxial L1[sub 0] CoPt and FePt films

Zeng, H.; Yan, M. L.; Powers, N.; Sellmyer, D. J.
April 2002
Applied Physics Letters;4/1/2002, Vol. 80 Issue 13, p2350
Academic Journal
We report results on highly oriented, face-centered tetragonal ordered CoPt and FePt thin films grown nonepitaxially by directly depositing films on thermally oxidized Si substrates and subsequent annealing. By controlling the thickness, composition, and annealing conditions, and/or depositing a proper underlayer, nearly perfect (001)-oriented CoPt and FePt films can be obtained. Magnetic measurements reveal large perpendicular anisotropy for such films.


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