Date of this Version
Journal of Magnetism and Magnetic Materials 328 (2013)
FePt films were prepared on (100) oriented single crystal MgO substrates at high temperature rang-ing from 620 until 800°C and in-situ annealed for different times ranging from 0 to 60 min to obtain ordered FePt films. The structural analysis indicates that FePt films grow epitaxially on MgO (100) substrates. Both increasing deposition temperature and in-situ annealing time enhance the (001) tex-ture and ordering of FePt films. The magnetic analysis shows that these L10 FePt films have perpen-dicular anisotropy and the easy magnetization c-axis is perpendicular to the film plane. Magnetization reversal is controlled by a rotational mechanism. The hard magnetic properties of the films are improved with increasing deposition temperature or in-situ annealing time.