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Quadrupolar transitions and medium-range-order effects in metal K-edge x-ray absorption spectra of 3d transition-metal compounds
Wu ZY(吴自玉); Xian DC(冼鼎昌); Hu TD(胡天斗); Xie YN(谢亚宁); Tao Y(陶冶); Wu, ZY; Xian, DC; Hu, TD; Xie, YN; Tao, Y; Natoli, CR; Paris, E; Marcelli, A
2004
发表期刊PHYSICAL REVIEW B
卷号70期号:3页码:33104
通讯作者Chinese Acad Sci, Inst High Energy Phys, Beijing Synchrotron Radiat Facil, Beijing 100039, Peoples R China ; Ist Nazl Fis Nucl, Lab Nazl Frascati, I-00044 Frascati, Italy ; Univ Camerino, Dipartimento Sci Terra, I-62032 Camerino, Italy ; Univ Camerino, INFM, I-62032 Camerino, Italy
文章类型Article
摘要We have investigated the pre-edge features in x-ray absorption spectra of transition metal (TM) monoxides at the metal K edge. By comparing the calculated dipolar and quadrupolar spectra with experiments we assign the first peak at the lowest energy to a direct quadrupolar transition (due to the more effective attraction of the core hole). The following peaks in this region are mainly dipolar in character and reflect the density of states due to the medium range order as long as the radius of the cluster equals the cation-cation shortest distance plus the nearest neighbor cation-anion bond, representing a band-like effect arising from the hybridization of the 4p orbitals of central TM atoms with the 3d-based octahedral molecular orbitals of the higher-neighboring cations.
学科领域Physics
研究领域[WOS]Physics ; Physics
DOI10.1103/PhysRevB.70.033104
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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:000222996700004
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被引频次:43[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/311005/240533
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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Wu ZY,Xian DC,Hu TD,et al. Quadrupolar transitions and medium-range-order effects in metal K-edge x-ray absorption spectra of 3d transition-metal compounds[J]. PHYSICAL REVIEW B,2004,70(3):33104.
APA 吴自玉.,冼鼎昌.,胡天斗.,谢亚宁.,陶冶.,...&Marcelli, A.(2004).Quadrupolar transitions and medium-range-order effects in metal K-edge x-ray absorption spectra of 3d transition-metal compounds.PHYSICAL REVIEW B,70(3),33104.
MLA 吴自玉,et al."Quadrupolar transitions and medium-range-order effects in metal K-edge x-ray absorption spectra of 3d transition-metal compounds".PHYSICAL REVIEW B 70.3(2004):33104.
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