Cu doped ZnO system (Zn1-xCuxO) has been synthesized by varying Cu concentration from 3 to 10% in the Zn site by conventional sintering technique. Room temperature ferromagnetism is observed in all Cu doped ZnO samples. It is observed that density is increased as a function of increasing concentration of Cu substitution at Zn site. Microstructural analysis and compositional mapping under electron probe microstructure analyzer (EPMA) indicates that Zn and Cu are distributed uniformly throughout the bulk sample. However, non-existence of copper oxide clusters in the bulk surface accounts for its ferromagnetic property. Decrease in the band gap of Cu doped ZnO compared to undoped ZnO confirms the matrix incorporation of Cu in the ZnO system.
机构:
Univ Sains Malaysia, Sch Mat & Mineral Resources Engn, Nibong Tebal 14300, Penang, Malaysia
Univ Teknol MARA, Inst Sci, Ion Mat & Devices iMADE Res Lab, Shah Alam 40450, MalaysiaUniv Mohamed Boudiaf Msila, Dept Phys, Phys & Chem Mat Lab, Msila 28000, Algeria
机构:
Fisk Univ, Dept Phys, Nashville, TN 37208 USAUniv Puerto Rico, Dept Phys, San Juan, PR 00931 USA
Bhattacharya, P.
Katiyar, R. S.
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Univ Puerto Rico, Dept Phys, San Juan, PR 00931 USA
Univ Puerto Rico, Inst Funct Nanomat, San Juan, PR 00931 USAUniv Puerto Rico, Dept Phys, San Juan, PR 00931 USA
机构:
Chinese Acad Sci, Key Lab Excited State Proc, Changchun Inst Opt Fine Mech & Phys, Changchun 130033, Peoples R China
Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China
Jilin Normal Univ, Inst Condensed State Phys, Siping 136000, Peoples R ChinaChinese Acad Sci, Key Lab Excited State Proc, Changchun Inst Opt Fine Mech & Phys, Changchun 130033, Peoples R China
Liu Hui-lian
Yang Jing-hai
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Chinese Acad Sci, Key Lab Excited State Proc, Changchun Inst Opt Fine Mech & Phys, Changchun 130033, Peoples R China
Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China
Jilin Normal Univ, Inst Condensed State Phys, Siping 136000, Peoples R ChinaChinese Acad Sci, Key Lab Excited State Proc, Changchun Inst Opt Fine Mech & Phys, Changchun 130033, Peoples R China
Yang Jing-hai
Zhang Yong-jun
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Jilin Normal Univ, Inst Condensed State Phys, Siping 136000, Peoples R ChinaChinese Acad Sci, Key Lab Excited State Proc, Changchun Inst Opt Fine Mech & Phys, Changchun 130033, Peoples R China
Zhang Yong-jun
Wang Ya-xin
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Jilin Normal Univ, Inst Condensed State Phys, Siping 136000, Peoples R ChinaChinese Acad Sci, Key Lab Excited State Proc, Changchun Inst Opt Fine Mech & Phys, Changchun 130033, Peoples R China
Wang Ya-xin
Wei Mao-bin
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Jilin Normal Univ, Inst Condensed State Phys, Siping 136000, Peoples R ChinaChinese Acad Sci, Key Lab Excited State Proc, Changchun Inst Opt Fine Mech & Phys, Changchun 130033, Peoples R China