文献类型：期刊文献

英文题名：Structural, optical and magnetic properties of Eu-doped ZnO films

作者：Tan, Yongsheng[1,2];Fang, Zebo[2];Chen, Wei[2];He, Pimo[1]

机构：[1]Zhejiang Univ, Dept Phys, Hangzhou 310027, Peoples R China;[2]Shaoxing Univ, Dept Phys, Shaoxing 312000, Peoples R China

年份：2011

卷号：509

期号：21

起止页码：6321

外文期刊名：JOURNAL OF ALLOYS AND COMPOUNDS

收录：SCI-EXPANDED(收录号：WOS:000290441700038)、、EI(收录号：20111913962168)、Scopus(收录号：2-s2.0-79955627426)、WOS

基金：This work is supported by the Ministry of Science and Technology of China and the National Natural Science Foundation of China.

语种：英文

外文关键词：Eu-doped ZnO films; Radio-frequency magnetron sputtering; Ferromagnetism; Magnetic measurements

外文摘要：Polycrystalline Zn1-xEuxO (x = 0, 0.02, 0.05) films were deposited on silicon (1 0 0) substrates by radio-frequency magnetron sputtering. The structural, optical and magnetic properties of the films were investigated. The results from both the X-ray diffraction and photoluminescence spectra reveal that Eu3+ ions successfully substitute for Zn2+ ions in the ZnO lattice. The magnetic field and temperature dependence of magnetization curves demonstrate that the Zn0.95Eu0.05O films are ferromagnetic at room temperature. No impurity phase was found in Eu-doped films with X-ray diffraction, Raman spectroscopy and zero-field-cooled measurements. The ferromagnetism is attributed to the intrinsic property of Eu-doped ZnO films and could be interpreted by the bound-magnetic-polaron model. (C) 2011 Elsevier B.V. All rights reserved.