Research Papers in Physics and Astronomy
Date of this Version
Several systems of nanocomposite thin films have been prepared by plasma sputtering and heat treatment. By choosing suitable multilayer structures of the as-deposited films and subsequent heat-treatment processes, the nanostrnctures of the films have been tailored. The thermal processing is the key to control the morphology. Appropriate heat-treatment processes have been found for the systems studied, which result in the desired nanostructures. For the first time a nearly ideal nanostructure with the soft-phase grains embedded homogeneously in the hard phase gralns has been obtained for the FePt-Fei.,Pt,(x-0.3) system. Effective intergrain exchange coupling has been realized. As a consequence, high energy products up to 50 MGOe have been achieved.
Published by IEEE; IEEE Trans. Mag. 35, 3241 (1999). ©1999 IEEE. Permission to use. http://ieeexplore.ieee.org/