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Fine control of L10 ordering and grain growth kinetics by C doping in FePt films
Applied Physics Letters
We present the results on highly anisotropic oriented face-centered-tetragonal ordered equiatomic FePt thin films embedded in a C matrix prepared by cosputtering technique on MgO ͑100͒ substrates at 400°C. We have found that doping of C in FePt alloy films is an effective and appropriate way to control the L1 0 ordering and growth of grain size down to 4 nm. Room-temperature magnetic measurements reveal that perpendicular magnetic anisotropy exists for these films with C concentration up to 25doi:10.1063/1.1564865 fatcat:aelylao5njcejlfpietgjs5tnm