Electronic structure, magnetic and structural properties of Ni doped ZnO nanoparticles
- Authors
- Kumar, Shalendra; Vats, Prashant; Gautam, S.; Gupta, V. P.; Verma, K. D.; Chae, K. H.; Hashim, Mohd.; Choi, H. K.
- Issue Date
- 2014-11
- Publisher
- PERGAMON-ELSEVIER SCIENCE LTD
- Citation
- MATERIALS RESEARCH BULLETIN, v.59, pp.377 - 381
- Abstract
- We report structural, magnetic and electronic structural properties of Ni doped ZnO nanoparticles prepared by auto-combustion method. The prepared nanoparticles were characterized by using X-ray diffraction (XRD), high resolution transmission electron microscopy (HR-TEM), near edge X-ray absorption fine structure (NEXAFS) spectroscopy, and dc magnetization measurements. The XRD and HR-TEM results indicate that Ni doped ZnO nanoparticles have single phase nature with wurtzite lattice and exclude the presence of secondary phase. NEXAFS measurements performed at Ni L-3,L-2-edges indicates that Ni ions are in +2 valence state and exclude the presence of Ni metal clusters. O K-edge NEXAFS spectra indicate an increase in oxygen vacancies with Ni-doping, while Zn L-3,L-2-edge show the absence of Zn-vacancies. The magnetization measurements performed at room temperature shows that pure and Ni doped ZnO exhibits ferromagnetic behavior. (C) 2014 Elsevier Ltd. All rights reserved.
- Keywords
- ROOM-TEMPERATURE FERROMAGNETISM; ROOM-TEMPERATURE FERROMAGNETISM; Nanostructures; Chemical synthesis; Transmission electron microscopy; Electronic structure; X-ray diffraction
- ISSN
- 0025-5408
- URI
- https://pubs.kist.re.kr/handle/201004/126195
- DOI
- 10.1016/j.materresbull.2014.07.044
- Appears in Collections:
- KIST Article > 2014
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