Fe ∕ Pt multilayered nanowires with well-defined interfaces and layer thicknesses were fabricated by a pulse-plating technique in nanoporous anodic alumina templates. The structure, surface morphology, and magnetic properties of the multilayered nanowire arrays have been characterized by x-ray diffractometer, field emission scanning electron microscope, transmission electron microscopy, and superconducting quantum interference device magnetometer. It is found that after being annealed at temperatures of 300°C, FePt ordered phase with high magnetic anisotropy is formed. This can be explained by rapid diffusion at Fe∕Pt interface.
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Wang et al. (2006) studied this question.
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