Oxygen Defects Mediated Magnetism of Ni Doped ZnO

Ni doped ZnO nanoparticles were synthesized by a solution route and annealed in O2, air, and Ar, respectively. X-ray diffraction and X-ray photoelectron spectroscopy measurements show that the samples possess typical wurtzite structure and have no other impurity phases. Magnetization loops for ZnO s...

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Main Authors:	W. J. Liu, X. D. Tang, Z. Tang, W. Bai, N. Y. Tang
Format:	Article
Language:	English
Published:	Hindawi Limited 2013-01-01
Series:	Advances in Condensed Matter Physics
Online Access:	http://dx.doi.org/10.1155/2013/424398

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spelling	doaj-617b97b4e12146dca8217a75f7e5881c2020-11-25T01:48:37ZengHindawi LimitedAdvances in Condensed Matter Physics1687-81081687-81242013-01-01201310.1155/2013/424398424398Oxygen Defects Mediated Magnetism of Ni Doped ZnOW. J. Liu0X. D. Tang1Z. Tang2W. Bai3N. Y. Tang4Shanghai University of Electric Power, 2588 Pingyang Road, Shanghai 200090, ChinaEast China Normal University, 500 Dongchuan Road, Shanghai 200241, ChinaEast China Normal University, 500 Dongchuan Road, Shanghai 200241, ChinaEast China Normal University, 500 Dongchuan Road, Shanghai 200241, ChinaShanghai University of Electric Power, 2588 Pingyang Road, Shanghai 200090, ChinaNi doped ZnO nanoparticles were synthesized by a solution route and annealed in O2, air, and Ar, respectively. X-ray diffraction and X-ray photoelectron spectroscopy measurements show that the samples possess typical wurtzite structure and have no other impurity phases. Magnetization loops for ZnO samples were measured and clearly show typical ferromagnetic saturation behavior. With the defect analysis based on photoluminescence spectroscopy, the effect of defects on the nature and origin of ferromagnetism was investigated. The results suggest that oxygen vacancies, especially single ionized oxygen vacancies, play a crucial role in mediating ferromagnetism in the Ni doped ZnO.http://dx.doi.org/10.1155/2013/424398
collection	DOAJ
language	English
format	Article
sources	DOAJ
author	W. J. Liu X. D. Tang Z. Tang W. Bai N. Y. Tang
spellingShingle	W. J. Liu X. D. Tang Z. Tang W. Bai N. Y. Tang Oxygen Defects Mediated Magnetism of Ni Doped ZnO Advances in Condensed Matter Physics
author_facet	W. J. Liu X. D. Tang Z. Tang W. Bai N. Y. Tang
author_sort	W. J. Liu
title	Oxygen Defects Mediated Magnetism of Ni Doped ZnO
title_short	Oxygen Defects Mediated Magnetism of Ni Doped ZnO
title_full	Oxygen Defects Mediated Magnetism of Ni Doped ZnO
title_fullStr	Oxygen Defects Mediated Magnetism of Ni Doped ZnO
title_full_unstemmed	Oxygen Defects Mediated Magnetism of Ni Doped ZnO
title_sort	oxygen defects mediated magnetism of ni doped zno
publisher	Hindawi Limited
series	Advances in Condensed Matter Physics
issn	1687-8108 1687-8124
publishDate	2013-01-01
description	Ni doped ZnO nanoparticles were synthesized by a solution route and annealed in O2, air, and Ar, respectively. X-ray diffraction and X-ray photoelectron spectroscopy measurements show that the samples possess typical wurtzite structure and have no other impurity phases. Magnetization loops for ZnO samples were measured and clearly show typical ferromagnetic saturation behavior. With the defect analysis based on photoluminescence spectroscopy, the effect of defects on the nature and origin of ferromagnetism was investigated. The results suggest that oxygen vacancies, especially single ionized oxygen vacancies, play a crucial role in mediating ferromagnetism in the Ni doped ZnO.
url	http://dx.doi.org/10.1155/2013/424398
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Oxygen Defects Mediated Magnetism of Ni Doped ZnO

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