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Correlation between electronic structure and magnetic properties of Fe-doped ZnO films
Chen, TX; Cao, L; Zhang, WH; Zhang, W; Han, YY; Zheng, ZY; Xu, FQ; Kurash, I; Qian, HJ; Wang, JO;奎热西; Qian HJ(钱海杰); Wang JO(王嘉鸥)
2012
发表期刊JOURNAL OF APPLIED PHYSICS
卷号111期号:12页码:123715
摘要Fe-doped ZnO films with different Fe concentrations that display ferromagnetism at room temperature have been prepared by plasma assisted molecular beamepitaxy (p-MBE) techniques. Synchrotron-based measurements of photoemission spectroscopy (PES), x-ray absorption spectroscopy (XAS), resonant photoemission spectroscopy (RPES), and superconducting quantum interference device (SQUID) were performed to investigate the electronic structure and magnetic properties of the films. It was found by Fe 2p PES and XAS that the dominant valence state of Fe ions is Fe3+ and that the configuration of Fe ions varies from tetrahedral sites to octahedral sites as the Fe concentration increases. Results of RPES indicate that the electronic states related to Fe2+ also exist near the Fermi level and that the distribution of Fe 3d electronic states in the valence band varies with different Fe concentrations. Correlations of the magnetic properties with the electronic structure of Fe-ZnO films have established that the electronic states related to Fe2+ and localized defects like Zn vacancies play an important role for ferromagnetism of Fe-ZnO films, while Fe3+ ions at octahedral sites destabilize the ferromagnetic interactions. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.4730605]
学科领域Physics
DOI10.1063/1.4730605
收录类别SCI
WOS记录号WOS:000305832100067
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被引频次:6[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/311005/224640
专题多学科研究中心
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Chen, TX,Cao, L,Zhang, WH,et al. Correlation between electronic structure and magnetic properties of Fe-doped ZnO films[J]. JOURNAL OF APPLIED PHYSICS,2012,111(12):123715.
APA Chen, TX.,Cao, L.,Zhang, WH.,Zhang, W.,Han, YY.,...&王嘉鸥.(2012).Correlation between electronic structure and magnetic properties of Fe-doped ZnO films.JOURNAL OF APPLIED PHYSICS,111(12),123715.
MLA Chen, TX,et al."Correlation between electronic structure and magnetic properties of Fe-doped ZnO films".JOURNAL OF APPLIED PHYSICS 111.12(2012):123715.
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