Oxygen vacancy induced ferromagnetism in Cu-doped ZnO
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Elsevier
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Abstract
Cu-doped ZnO was synthesized by hydrothermal method in a pulsed magnetic field. X-ray diffraction reveals the hexagonal wurtzite structure as with pure ZnO. The application of pulsed magnetic field increases the oxygen vacancy content and doping level of Cu2+ analyzed by Raman spectra and X-ray photoelectron spectroscopy. The origin of ferromagnetism is attributed to the oxygen vacancies induced Cu2+ ferromagnetic coupling.
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Subject(s)
oxygen vacancy, high pulsed magnetic field, ZnO diluted magnetic semiconductors, Cu-doped ZnO
Citation
Ceramics International. 2017, vol. 43, issue 3, p. 3166-3170.