CoPtCu nanocomposite films were prepared by magnetron sputtering. The dependences of texture and magnetic properties on film thickness, Cu atomic fraction and annealing conditions are investigated. After annealing at 640 o C, (001) orientation was achieved in the Co 41 Pt 49 Cu 10 film, with a coercivity of 8.4 kOe and magnetization of 650 emu/cm 3 .A short-range domain structure is observed indicating weak inter-grains exchange coupling after annealing. The results suggest that this system might be applicable to ultra high-density perpendicular hybrid recording media.
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