Dieter Weller, Oleksandr Mosendz, Gregory Parker, Simone Pisana and Tiffany S. Santos L10 FePtX–Y media for heat-assisted magnetic recording physica status solidi (a) 210
This Review Article discusses highly chemically ordered L10 FePtX-Y nano-granular films with high perpendicular magnetic anisotropy as key media approaches for future heat-assisted magnetic recording. They are sputter-deposited at about 600 °C and grown on well oriented MgO(002) texture layers. X = Ag and Cu reduce the deposition and Curie temperature. Y = carbon or other segregants are used to optimize grain size, shape and dispersion, which together with thermal conductivity are critical to extend the areal density in future magnetic recording to 1.5-5 Tb∕in2.
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