Correlation between oxygen vacancies and magnetism in Fe-doped In2O3 films
An, YK; Wang, SQ; Feng, DQ; Wu, ZH; Liu, JW;吴忠华
刊名APPLIED SURFACE SCIENCE
2013
卷号276页码:535-538
关键词In2O3 film Fe-doped Oxygen vacancies Ferromagnetism
学科分类Chemistry; Materials Science; Physics
DOI10.1016/j.apsusc.2013.03.129
英文摘要Correlation between oxygen vacancies and magnetic property in the as-deposited and annealed (In0.93Fe0.07)(2)O-3 films has been investigated by X-ray diffraction, magnetization measurement, X-ray absorption near-edge structure and extend X-ray absorption fine structure. Magnetic measurement reveals that clear room temperature ferromagnetism is observed for the as-deposited film, in which the doped Fe ions substitute for In sites of the In2O3 lattice and Fe-related secondary phases or clusters as the source of ferromagnetism is safely ruled out. After high-temperature annealing in air, the crystalline structure of film and occupation sites of Fe ions keep unchanged, whereas the magnetic property has a dramatic decrease. Based on X-ray absorption near-edge spectroscopy analysis and multiple-scattering theoretical calculations, it is found that the content of oxygen vacancy of film remarkably decreases, even disappears by annealing in air, which resulting in greatly decreasing the ferromagnetism. These results further provide strong evidence that the oxygen vacancies play an important role in activating the ferromagnetic interactions in Fe-doped In2O3. (C) 2013 Elsevier B.V. All rights reserved.
收录类别SCI
WOS记录号WOS:000318979800076
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被引频次:17[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/224008
专题中国科学院高能物理研究所_多学科研究中心_期刊论文
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An, YK,Wang, SQ,Feng, DQ,et al. Correlation between oxygen vacancies and magnetism in Fe-doped In2O3 films[J]. APPLIED SURFACE SCIENCE,2013,276:535-538.
APA An, YK,Wang, SQ,Feng, DQ,Wu, ZH,&Liu, JW;吴忠华.(2013).Correlation between oxygen vacancies and magnetism in Fe-doped In2O3 films.APPLIED SURFACE SCIENCE,276,535-538.
MLA An, YK,et al."Correlation between oxygen vacancies and magnetism in Fe-doped In2O3 films".APPLIED SURFACE SCIENCE 276(2013):535-538.
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