Abstract
We report on the facile synthesis of spinel ferrite NiFe2O4 nanowire arrays by means of a novel melt-injection-decomposition route, which is based on an anodic aluminum oxide template. X-ray diffraction characterization reveals a relatively pure phase with cubic spinel structure. Transmission electron microscopy characterization indicates uniform nanowire morphology. The as-synthesized NiFe2O4 nanowire arrays exhibit shape magnetic anisotropy with an easy magnetization along the nanowire arrays. The facile synthesis route is expected to facilitate the large scale synthesis of NiFe2O4 nanowire arrays, paving also the way for the development of various spinel ferrites with specific architecture.
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