Magnetic properties and structure of Fe/Pt thin films

The structural transformation from fcc to fct and relevant magnetic properties of initially multilayered Fe/Pt films were studied. When the as-deposited Fe/Pt films were annealed at the temperature of 300/spl deg/C and up, the fct-phase was formed. Rather square hysteresis loops and large coercivities were measured from the annealed films. The films annealed at 300/spl deg/C retain a layered structure.