Room temperature ferromagnetism in chemically synthesized ZnO rod

Title
Room temperature ferromagnetism in chemically synthesized ZnO rod
Authors
Shalendra KumarY. J. KimB. H. KooS. Gautam채근화Ravi KumarC. G. Lee
Keywords
DMS; ZnO; X-ray diffraction and absorption
Issue Date
2009-03
Publisher
Materials letters
Citation
VOL 63, 194-196
Abstract
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.
URI
http://pubs.kist.re.kr/handle/201004/35025
ISSN
0167-577X
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KIST Publication > Article
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