$L1$ $FePt–MgO$ perpendicular thin film deposited by alternating sputtering at elevated temperature Available to Purchase

$FePt–MgO$ two phase thin films have been obtained by an alternating sputtering method at elevated temperatures. It is found that the $L10$ $FePt$ grains grow in a columnar manner through the thickness of the film and possess a (001) perpendicular texture promoted by the (200)-textured crystalline $MgO$ underlayer. The amorphous $MgO$ in the two phase mixture forms uniform separation walls between $FePt$ grains. The microstructure is similar to that of Co-alloy/oxide granular media.