High energy products in rapidly annealed nanoscale Fe/Pt multilayers
- 26 January 1998
- journal article
- research article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 72 (4), 483-485
- https://doi.org/10.1063/1.120793
Abstract
Magnetic properties of nanocomposite Fe–Pt films with Fe concentration higher than 50 at % have been investigated in this study. Fe/Pt multilayers were produced by sputtering and magnetic hardening was observed after heat treatment including rapid annealing. The final nanocomposite films consisted of the hard face-centered tetragonal FePt phase and a soft face-centered-cubic phase. The maximum energy products of the optimally processed samples exceeded 40 MGOe. Evidence for exchange coupling of the hard and soft phases was found.Keywords
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