中国物理B ›› 2016, Vol. 25 ›› Issue (9): 97502-097502.doi: 10.1088/1674-1056/25/9/097502

• CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES • 上一篇    下一篇

Room-temperature ferromagnetism observed in Nd-doped In2O3 dilute magnetic semiconducting nanowires

Zhanpeng Lv(吕占朋), Junran Zhang(张军然), Wei Niu(钮伟), Minhao Zhang(张敏昊), Li Song(宋丽), Hairong Zhu(朱海荣), Xuefeng Wang(王学锋)   

  1. 1. Jiangsu Provincial Key Laboratory of Advanced Photonic and Electronic Materials, Collaborative Innovation Center of Advanced Microstructures, School of Electronic Science and Engineering, Nanjing University, Nanjing 210093, China;
    2. Liaoyang Power Supply Branch, Liaoning Provincial Electric Power Corporation Limited, State Grid Corporation of China, Liaoyang 111000, China
  • 收稿日期:2016-05-24 修回日期:2016-06-23 出版日期:2016-09-05 发布日期:2016-09-05
  • 通讯作者: Xuefeng Wang E-mail:xfwang@nju.edu.cn
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant No. 11274003), the Priority Academic Program Development of Jiangsu Higher Education Institutions, China, and the Fundamental Research Funds for the Central Universities, China.

Room-temperature ferromagnetism observed in Nd-doped In2O3 dilute magnetic semiconducting nanowires

Zhanpeng Lv(吕占朋)1, Junran Zhang(张军然)1, Wei Niu(钮伟)1, Minhao Zhang(张敏昊)1, Li Song(宋丽)2, Hairong Zhu(朱海荣)2, Xuefeng Wang(王学锋)1   

  1. 1. Jiangsu Provincial Key Laboratory of Advanced Photonic and Electronic Materials, Collaborative Innovation Center of Advanced Microstructures, School of Electronic Science and Engineering, Nanjing University, Nanjing 210093, China;
    2. Liaoyang Power Supply Branch, Liaoning Provincial Electric Power Corporation Limited, State Grid Corporation of China, Liaoyang 111000, China
  • Received:2016-05-24 Revised:2016-06-23 Online:2016-09-05 Published:2016-09-05
  • Contact: Xuefeng Wang E-mail:xfwang@nju.edu.cn
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant No. 11274003), the Priority Academic Program Development of Jiangsu Higher Education Institutions, China, and the Fundamental Research Funds for the Central Universities, China.

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摘要： Nd-doped In2O3 nanowires were fabricated by an Au-catalyzed chemical vapor deposition method. Nd atoms were successfully doped into the In2O3 host lattice structure, as revealed by energy dispersive x-ray spectroscopy, x-ray photoelectron spectroscopy, Raman spectroscopy, and x-ray diffraction. Robust room temperature ferromagnetism was observed in Nd-doped In2O3 nanowires, which was attributed to the long-range-mediated magnetization among Nd3+-vacancy complexes through percolation-bound magnetic polarons.

关键词: dilute magnetic semiconductor, nanowires, ferromagnetism, oxide

Abstract: Nd-doped In2O3 nanowires were fabricated by an Au-catalyzed chemical vapor deposition method. Nd atoms were successfully doped into the In2O3 host lattice structure, as revealed by energy dispersive x-ray spectroscopy, x-ray photoelectron spectroscopy, Raman spectroscopy, and x-ray diffraction. Robust room temperature ferromagnetism was observed in Nd-doped In2O3 nanowires, which was attributed to the long-range-mediated magnetization among Nd3+-vacancy complexes through percolation-bound magnetic polarons.

Key words: dilute magnetic semiconductor, nanowires, ferromagnetism, oxide

中图分类号:  (Magnetic semiconductors)

  • 75.50.Pp
75.10.-b (General theory and models of magnetic ordering) 81.15.Gh (Chemical vapor deposition (including plasma-enhanced CVD, MOCVD, ALD, etc.))