Regulation of Magnetic Behavior and Electronic Configuration in Mn-Doped ZnO Nanorods through Surface Modifications
Zhang LJ(张林娟); Zhang, LJ; Wang, JQ; Li, J; Zhang, S; Jiang, Z; Zhou, J; Cheng, J; Hu, TD; Yan, WS; Wei, XJ; Wu, ZY; Zhou J(周靖); Hu TD(胡天斗); Wu ZY(吴自玉)
刊名CHEMISTRY OF MATERIALS
2012
卷号24期号:9页码:1676-1681
关键词dilute magnetic semiconductor surface modification X-ray absorption spectroscopy
学科分类Chemistry; Materials Science
DOI10.1021/cm203661c
英文摘要In this research, Mn-doped ZnO nanorods were synthesized by a solvothermal method and their magnetic behavior was tuned from paramagnetism to ferromagnetism via a change in their surface environment. The structure and electronic configuration of Mn ions were investigated by means of X-ray diffraction and X-ray absorption fine structure to understand the surface-controlled magnetic properties. The surface electronic configuration was studied by Mn L-3,L-2-edge XANES, which were simulated using the ligand field multiplet theory and the ligand-to-metal charge transfer effects. The results pointed out that Mn3+ ions occupy distorted tetrahedronal sites near the surface region and different surface modifications produce changes in the Mn 3d-anion p hybridization strength. A midgap state with strong O-2p character has been also recognized at the O K-edge XANES, and the density of such a state is strongly related to the observed ferromagnetism. This research represents a novel promising route for tuning the magnetic behavior of nano-dilute magnetic semiconductor systems via surface atomic changes.
收录类别SCI
WOS记录号WOS:000303628100017
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被引频次:19[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/311005/224162
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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Zhang LJ,Zhang, LJ,Wang, JQ,et al. Regulation of Magnetic Behavior and Electronic Configuration in Mn-Doped ZnO Nanorods through Surface Modifications[J]. CHEMISTRY OF MATERIALS,2012,24(9):1676-1681.
APA 张林娟.,Zhang, LJ.,Wang, JQ.,Li, J.,Zhang, S.,...&吴自玉.(2012).Regulation of Magnetic Behavior and Electronic Configuration in Mn-Doped ZnO Nanorods through Surface Modifications.CHEMISTRY OF MATERIALS,24(9),1676-1681.
MLA 张林娟,et al."Regulation of Magnetic Behavior and Electronic Configuration in Mn-Doped ZnO Nanorods through Surface Modifications".CHEMISTRY OF MATERIALS 24.9(2012):1676-1681.
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