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The mechanism of Al donor defects in (Zn, Co)O:Al: a view from resonant x-ray spectroscopies
Zhou KJ(周克瑾); Cui MQ(崔明启); Wu ZY(吴自玉); Zhou, KJ; Tezuka, Y; Cui, MQ; Zhao, J; Liu, XC; Chen, ZZ; Wu, ZY
2009
发表期刊JOURNAL OF PHYSICS-CONDENSED MATTER
卷号21期号:49页码:495502
通讯作者[Zhou, K. J. ; Cui, M. Q. ; Wu, Z. Y.] Inst High Energy Phys, Beijing Synchrotron Radiat Facil, Beijing 100049, Peoples R China ; [Tezuka, Y.] Hirosaki Univ, Fac Sci & Technol, Dept Adv Phys, Aomori 0368561, Japan ; [Zhao, J.] Beijing Technol & Business Univ, Dept Math & Phys, Beijing 100037, Peoples R China ; [Liu, X. C. ; Chen, Z. Z.] Shanghai Inst Ceram, Chinese Acad Sci, Shanghai 200050, Peoples R China
文章类型Article
摘要We studied the effect of Al doping in Zn(0.94)Co(0.05)Al(0.01)O nano-powders from the electronic structure point of view by applying x-ray absorption spectroscopy and resonant inelastic x-ray scattering at the oxygen K- and Co L-edges. The intensity of the pre-edge structure of the O-K XAS spectra is enhanced following the introduction of the Al defect. Multiple scattering calculations demonstrate it can be accounted for by the gain of the hybridization strength between O 2p and Al 3p (and/or Co 3d) states. The consensus on the hybridization strength is reached by combining Co-L XAS and RIXS investigations and multiplet calculations. It reveals different spatial substitutions of Al doping can alter the number of shared oxygen atoms between the Co and Al tetrahedrons. These shared ligands are responsible for the Al 3p and Co 3d state hybridization strength as well as the ferromagnetism of the ground state. The magnetic difference is better understood to be governed by various shared oxygen atoms rather than the distance between the Al defect and Co impurities.
学科领域Physics
研究领域[WOS]Physics ; Physics
DOI10.1088/0953-8984/21/49/495502
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语种英语
研究领域[WOS]Physics ; Physics
WOS类目Physics, Condensed Matter
WOS记录号WOS:000272077300013
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被引频次:1[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/311005/241069
专题多学科研究中心
作者单位中国科学院高能物理研究所
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Zhou KJ,Cui MQ,Wu ZY,et al. The mechanism of Al donor defects in (Zn, Co)O:Al: a view from resonant x-ray spectroscopies[J]. JOURNAL OF PHYSICS-CONDENSED MATTER,2009,21(49):495502.
APA 周克瑾.,崔明启.,吴自玉.,Zhou, KJ.,Tezuka, Y.,...&Wu, ZY.(2009).The mechanism of Al donor defects in (Zn, Co)O:Al: a view from resonant x-ray spectroscopies.JOURNAL OF PHYSICS-CONDENSED MATTER,21(49),495502.
MLA 周克瑾,et al."The mechanism of Al donor defects in (Zn, Co)O:Al: a view from resonant x-ray spectroscopies".JOURNAL OF PHYSICS-CONDENSED MATTER 21.49(2009):495502.
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