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Fabrication and Characterization of Fe-Doped In2O3 Dilute Magnetic Semiconducting Nanowires

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【作者】 张军然； 吴振尧； 刘玉杰； 吕占朋； 钮伟； 王学锋； 杜军； 刘文卿； 张荣； 徐永兵；

【Author】 ZHANG Jun-Ran;WU Zhen-Yao;LIU Yu-Jie;LV Zhan-Peng;NIU Wei;WANG Xue-Feng;DU Jun;LIU Wen-Qing;ZHANG Rong;XU Yong-Bing;Jiangsu Provincial Key Laboratory of Advanced Photonic and Electronic Materials,Collaborative Innovation Center of Advanced Microstructures,School of Electronic Science and Engineering,Nanjing University;National Laboratory of Solid State Microstructures,Collaborative Innovation Center of Advanced Microstructures,Department of Physics,Nanjing University;York-Nanjing International Center of Spintronics(YNICS),Department of Electronics,The University of York;

【机构】 Jiangsu Provincial Key Laboratory of Advanced Photonic and Electronic Materials,Collaborative Innovation Center of Advanced Microstructures,School of Electronic Science and Engineering,Nanjing University； National Laboratory of Solid State Microstructures,Collaborative Innovation Center of Advanced Microstructures,Department of Physics,Nanjing University； York-Nanjing International Center of Spintronics(YNICS),Department of Electronics,The University of York；

【摘要】 Fe-doped In2O3 dilute magnetic semiconducting nanowires are fabricated on Au-deposited Si substrates by the chemical vapor deposition technique.It is confirmed by energy dispersive x-ray spectroscopy（EDS）,x-ray photoelectron spectroscopy（XPS） and Raman spectroscopy that Fe has been successfully doped into lattices of In2O3 nanowires.The EDS measurements reveal a large amount of oxygen vacancies existing in the Fe-doped In2O3 nanowires.The Fe dopant exists as a mixture of Fe2+ and Fe3+,as revealed by the XPS.The origin of room-temperature ferromagnetism in Fe-doped In2O3 nanowires is explained by the bound magnetic poJaron model.

【Abstract】 Fe-doped In2O3 dilute magnetic semiconducting nanowires are fabricated on Au-deposited Si substrates by the chemical vapor deposition technique.It is confirmed by energy dispersive x-ray spectroscopy（EDS）,x-ray photoelectron spectroscopy（XPS） and Raman spectroscopy that Fe has been successfully doped into lattices of In2O3 nanowires.The EDS measurements reveal a large amount of oxygen vacancies existing in the Fe-doped In2O3 nanowires.The Fe dopant exists as a mixture of Fe2+ and Fe3+,as revealed by the XPS.The origin of room-temperature ferromagnetism in Fe-doped In2O3 nanowires is explained by the bound magnetic poJaron model.

【基金】 Supported by the National Basic Research Program of China under Grant Nos 2014CB921101,2014CB921103 and2013CB922103;the National Natural Science Foundation of China under Grant Nos 11274003,61176088 and 61274102;the Program for the New Century Excellent Talents in University under Grant No NCET-11-0240;the PAPD Project,and the Fundamental Research Funds for the Central Universities
  • 【文献出处】 Chinese Physics Letters ,中国物理快报(英文版) , 编辑部邮箱 ,2015年03期
  • 【分类号】TB383.1;O483
  • 【下载频次】17
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