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Room Temperature Ferromagnetism in Ni Doped ZnO Powders

Zhao, Rui Bin ; Hou, Deng Lu ; Guo, Jun Mei ; Zhen, Cong Mian ; Tang, Gui De

Journal of superconductivity and novel magnetism, 2010-10, Vol.23 (7), p.1261-1265 [Periódico revisado por pares]

Boston: Springer US

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Título:
Room Temperature Ferromagnetism in Ni Doped ZnO Powders
Autor: Zhao, Rui Bin ; Hou, Deng Lu ; Guo, Jun Mei ; Zhen, Cong Mian ; Tang, Gui De
Assuntos: Characterization and Evaluation of Materials ; Condensed Matter Physics ; Condensed matter: electronic structure, electrical, magnetic, and optical properties ; Diffraction ; Domain effects, magnetization curves, and hysteresis ; Exact sciences and technology ; Ferromagnetism ; Ii-vi semiconductors ; Letter ; Magnetic Materials ; Magnetic properties ; Magnetic properties and materials ; Magnetic semiconductors ; Magnetism ; Magnetization curves, magnetization reversal, hysteresis, barkhausen and related effects ; Nickel ; Optical properties and condensed-matter spectroscopy and other interactions of matter with particles and radiation ; Photoluminescence ; Physics ; Physics and Astronomy ; Sol gel process ; Strongly Correlated Systems ; Studies of specific magnetic materials ; Superconductivity ; Wurtzite ; X-rays ; Zinc oxide
É parte de: Journal of superconductivity and novel magnetism, 2010-10, Vol.23 (7), p.1261-1265
Notas: ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
Descrição: Zn 1− x Ni x O ( x =0.1%, 0.4%, 0.7%, 1.0%) powders were prepared using the sol-gel technique, and the structural, optical, and magnetic properties of the samples were investigated. X-ray diffraction measurements show that all samples have a wurtzite structure and that the c -axis lattice constant decreases as the Ni content increases. X-ray photoelectron spectroscopy studies reveal that the doped Ni ions are in divalent states in all samples. Optical absorption spectra show that the band energy of Zn 1− x Ni x O powders decreases with increasing Ni concentration. Photoluminescence measurements of Zn 1− x Ni x O show a broad peak at a wavelength centered at about 467 nm which indicates the presence of a fraction of defects in ZnO. The room temperature ferromagnetism observed in all samples is intrinsic in nature.
Editor: Boston: Springer US
Idioma: Inglês

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Room Temperature Ferromagnetism in Ni Doped ZnO Powders

Zhao, Rui Bin ; Hou, Deng Lu ; Guo, Jun Mei ; Zhen, Cong Mian ; Tang, Gui De

Boston: Springer US

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