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

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 th...

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Bibliographic Details
Published inOptoelectronics letters Vol. 12; no. 1; pp. 52 - 55
Main Author 吴兆丰 郭磊 程鲲 张峰 关荣锋
Format Journal Article
LanguageEnglish
Published Tianjin Tianjin University of Technology 2016
Subjects
Lasers
Mn掺杂
Optical Devices
Optics
Photonics
Physics
Physics and Astronomy
x-ray衍射
ZnO薄膜
微观结构
掺杂浓度
氧化锌薄膜
磁性能
锰掺杂
Yancheng Institute
Apply Physic Letter
Magnetic Polaron Model
Room Temperature Ferromagnetism
Dilute Magnetic Semiconductor
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ISSN1673-1905
1993-5013
DOI10.1007/s11801-016-5236-x

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Summary: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.
Bibliography:12-1370/TN
WU Zhao-feng , GUO Lei , CHENG Kun, ZHANG Feng, and GUAN Rong-feng （ 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）
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.
ISSN:1673-1905
1993-5013
DOI:10.1007/s11801-016-5236-x