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A fabrication and magnetic properties study on Al doped Zn_(0.99)Co_(0.01)O dilution ferromagnetic semiconductors 被引量:1

A fabrication and magnetic properties study on Al doped Zn_(0.99)Co_(0.01)O dilution ferromagnetic semiconductors
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摘要 This paper reports that a chemical method is employed to synthesize Co and Al co-doped ZnO, namely,Zn0.99-xCo0.01AlxO dilution semiconductors with the nominal composition of x=0, 0.005 and 0.02.Structural,magnetic and optical properties of the produced samples are studied.The results indicate that samples sintered in air under the temperatures of 500 ℃ show a single wurtzite ZnO structure and the ferromagnetism decreases with the increase of Al.Photoluminescence spectra of different Al-doped samples indicate that increasing Al concentration in Zn0.99-xCo0.01AlxO results in a decrease of Zni,which resembles the trend of the ferromagnetic property of the corresponding samples. Therefore,it is deduced that the ferromagnetism observed in the studied samples originates from the interstitial defect of zinc (Zni) in the lattice of Co-doped ZnO. This paper reports that a chemical method is employed to synthesize Co and Al co-doped ZnO, namely,Zn0.99-xCo0.01AlxO dilution semiconductors with the nominal composition of x=0, 0.005 and 0.02.Structural,magnetic and optical properties of the produced samples are studied.The results indicate that samples sintered in air under the temperatures of 500 ℃ show a single wurtzite ZnO structure and the ferromagnetism decreases with the increase of Al.Photoluminescence spectra of different Al-doped samples indicate that increasing Al concentration in Zn0.99-xCo0.01AlxO results in a decrease of Zni,which resembles the trend of the ferromagnetic property of the corresponding samples. Therefore,it is deduced that the ferromagnetism observed in the studied samples originates from the interstitial defect of zinc (Zni) in the lattice of Co-doped ZnO.
出处 《Chinese Physics B》 SCIE EI CAS CSCD 2009年第7期3040-3043,共4页 中国物理B(英文版)
关键词 ZNO DMSs DOPING ZnO, DMSs, doping
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