Ferromagnetism of Ni-Doped ZnO Powders Prepared by Sol-Gel Method above Room Temperature

作     者：Li Binbin Zhang Rong Xiu Xiangqian Tao Zhikuo Chen Lin Xie Zili Zheng Youdou Yu Huiqiang 

作者机构：Jiangsu Provincial Key Laboratory of Advanced Photonic and Electronic Materials Department of Physics Nanjing University Nanjing 210093 China Jiangsu Provincial Key Laboratory of Advanced Photonic and Electronic Materials Department of Physics Nanjing University Nanjing 210093 China Jiangsu Provincial Key Laboratory of Advanced Photonic and Electronic Materials Department of Physics Nanjing University Nanjing 210093 China Jiangsu Provincial Key Laboratory of Advanced Photonic and Electronic Materials Department of Physics Nanjing University Nanjing 210093 China Jiangsu Provincial Key Laboratory of Advanced Photonic and Electronic Materials Department of Physics Nanjing University Nanjing 210093 China Jiangsu Provincial Key Laboratory of Advanced Photonic and Electronic Materials Department of Physics Nanjing University Nanjing 210093 China Jiangsu Provincial Key Laboratory of Advanced Photonic and Electronic Materials Department of Physics Nanjing University Nanjing 210093 China Modern Analysis Center Nanjing University Nanjing 210093 China 

出 版 物：《Journal of Rare Earths》 (稀土学报（英文版）)

年 卷 期：2006年第24卷第z1期

页      面：186-188页

核心收录：

学科分类：07[理学] 070205[理学-凝聚态物理] 08[工学] 080501[工学-材料物理与化学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0703[理学-化学] 0702[理学-物理学] 

基　　金：Project supported by the Special Fund for Major State Basic Research Project (G2000068305)  the Hi-Tech Research Project (2004AA31G050)  and the National Natural Science Foundation of China (60390072) 

主　　题：sol-gel Ni-doped ZnO powder ferromagnetism 

摘      要：The magnetic and structural properties of 2% Ni-doped ZnO powers prepared by sol-gel method were studied. X-ray diffraction (XRD) and high resolution transmission electron microscopy (HRTEM) of the sample do not show existence of any signal of second phase. The X-photoelectron spectroscopy (XPS) of the sample shows the chemical valence of Ni is +2 and the real Ni concentration is 2.19% determined by X-ray fluorescence spectra (XRFS). The magnetic property performed with superconducting quantum interference device (SQUID) shows that the sample exhibits ferromagnetism above room temperature and the Curie temperature (TC) is about 600 K.