Abstract
The structure and magnetic properties of 100 nm thick epitaxial FePtx(001) alloy film,growth by MBE with x=0.8~1.5,and function of growth temperature(2500C∼650 0C). XRD data showed that when x~1,the alloy became L10 structure,the order parameter is the best,when the growth temperature below 250 0C, it couldn’t become the L10, when growth temperature above 650 0C,the PMA effect also doesn’t exist