Oxygen vacancy induced ferromagnetism in Cu-doped ZnO

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• 作者：Mingyuan Zhu^a ; Zihao Zhang^a ; Min Zhong^a ; Muhammad Tariq^a ; Ying Li^a ; ^{liying62@shu.edu.cn} ; Wenxian Li^a ; Hongming Jin^a ; Katerina Skotnicova^b ; Yibing Li^c
• 关键词：Oxygen vacancy ; High pulsed magnetic field ; ZnO diluted magnetic semiconductors ; Cu-doped ZnO
• 刊名：Ceramics International
• 出版年：2017
• 出版时间：15 February 2017
• 年：2017
• 卷：43
• 期：3
• 页码：3166-3170
• 全文大小：794 K
• 卷排序：43

文摘

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.