Room temperature ferromagnetism in chemically synthesized ZnO rods

Details Room temperature ferromagnetism in chemically synthesized ZnO rods Room temperature ferromagnetism in chemically synthesized ZnO rods

2009-11-22

arxiv.org/abs/0911.4229v1

Materials Letter, 63 (2009) 194-196

Physics

Condensed Matter

Materials Science

8 Pages, 3 Figures

Scientific paper

10.1016/j.matlet.2008.09.057

We report structural and magnetic properties of pure ZnO rods using X-ray diffraction (XRD), magnetization hysteresis (M-H) loop and near edge x-ray fine structure spectroscopy (NEXAFS) study at O K edge. Sample of ZnO was prepared by co-precipitation method. XRD and selective area electron diffraction measurements infer that ZnO rods exhibit a single phase polycrystalline nature with wurtzite lattice. Field emission transmission electron microscopy, field emission scanning electron microscopy micrographs infers that ZnO have rod type microstructures with dimension 200 nm in diameter and 550 nm in length. M-H loop studies performed at room temperature display room temperature ferromagnetism in ZnO rods. NEXAFS study reflects absence of the oxygen vacancies in pure ZnO rods.

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