Influence of Mn-doping concentration on the microstructure and magnetic properties of ZnO thin films

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• 作者：Zhao-feng Wu 吴兆丰 ; Lei Guo 郭磊 ; Kun Cheng 程鲲 ; Feng Zhang 张峰…
• 刊名：Optoelectronics Letters
• 出版年：2016
• 出版时间：January 2016
• 年：2016
• 卷：12
• 期：1
• 页码：52-55
• 全文大小：428 KB
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• 作者单位：Zhao-feng Wu 吴兆丰 (1)
  Lei Guo 郭磊 (1)
  Kun Cheng 程鲲 (1)
  Feng Zhang 张峰 (2)
  Rong-feng Guan 关荣锋 (3)
  
  1. School of Mathematics and Physics, Yancheng Institute of Technology, Yancheng, 224051, China
  2. Civil Engineering Department, Yancheng Institute of Technology, Yancheng, 224051, China
  3. Key Laboratory for Advanced Technology in Environmental Protection of Jiangsu Province, Yancheng Institute of Technology, Yancheng, 224051, China
  
• 刊物类别：Physics and Astronomy
• 刊物主题：Physics
  Applied Optics, Optoelectronics and Optical Devices
  Chinese Library of Science
  
• 出版者：Tianjin University of Technology, co-published with Springer-Verlag GmbH
• ISSN：1993-5013

文摘

The microstructure and magnetic properties of Mn-doped ZnO films with various Mn contents, synthesized by magnetron sputtering at room temperature, are investigated in detail. X-ray diffraction (XRD) measurement results suggest that the doped Mn ions occupy the Zn sites successfully and do not change the crystal structure of the ZnO films. However, the microstructure of the Mn-doped ZnO films apparently changes with increasing the Mn concentration. Arrays of well-aligned nanoscale rods are found in the Mn-doped ZnO films with moderate Mn concentrations. Magnetic measurement results indicate that the ZnO films doped with moderate Mn concentration are ferromagnetic at room temperature. The possible origin of the ferromagnetism in our samples is also explored in detail. This work has been supported by the National Natural Science Foundation of China (Nos.11204266 and 21276220), and the Nature Science Foundation of Jiangsu Province (No.BK20141262).