Oxygen Defects Mediated Magnetism of Ni Doped ZnO | Zendy

Weijing Liu | Zendy; Xiaodong Tang | Zendy; Zheng Tang | Zendy; Wei Bai | Zendy; Nai Yun Tang | Zendy

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Oxygen Defects Mediated Magnetism of Ni Doped ZnO

Author(s) -

Weijing Liu,

Xiaodong Tang,

Zheng Tang,

Wei Bai,

Nai Yun Tang

Publication year - 2013

Publication title -

advances in condensed matter physics

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.314

H-Index - 26

eISSN - 1687-8124

pISSN - 1687-8108

DOI - 10.1155/2013/424398

Subject(s) - wurtzite crystal structure , ferromagnetism , materials science , photoluminescence , x ray photoelectron spectroscopy , impurity , magnetism , oxygen , doping , magnetization , spectroscopy , condensed matter physics , magnetic semiconductor , nuclear magnetic resonance , zinc , optoelectronics , magnetic field , metallurgy , chemistry , physics , organic chemistry , quantum mechanics

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

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