L1(0) ordered FePt : C composite films with (001)texture

by M L Yan, R F Sabirianov, Y F Xu, X Z Li, D J Sellmyer
IEEE Transactions on Magnetics ()

Abstract

Highly textured (001) FePt:C nanocomposite thin films, deposited directly on thermally oxidized Si wafers, are obtained by multilayer deposition plus subsequent thermal annealing. Nanostructures, crystalline orientations, interactions, and magnetic properties are investigated by transmission electron microscopy (TEM), X-ray diffraction (XRD), magnetic force microscopy, and magnetic measurements. The formation of the ordered L1(0) phase is confirmed by XRD, and only visible (001) peaks indicate a high degree of the (001) texture. TEM observation reveals that FePt grains are embedded in the C matrix and appear to be well isolated. The FePt grains are very uniform with average sizes about 5 nm. [References: 13]

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