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X-ray absorption near-edge structure at the Mg and FeK edges in olivine minerals
Wu ZY(吴自玉); Wu, ZY; Mottana, A; Marcelli, A; Paris, E; Giuli, G; Cibin, G
2004
发表期刊PHYSICAL REVIEW B
卷号69期号:10页码:104106
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, RM, Italy ; Univ Roma Tre, Dipartimento Sci Geol, I-00146 Rome, RM, Italy ; Univ Camerino, Dipartimento Sci Terra, I-62032 Camerino, MC, Italy
文章类型Article
摘要Mg and Fe K-edge x-ray absorption near-edge spectroscopy spectra of the Pbnm olivine series end members forsterite, fayalite, monticellite, and kirschsteinite, as well as of a synthetic Fe-Mg olivine of intermediate composition (Fo50), have been recorded and compared with multiple-scattering simulations. A comparison of experimental and theoretical spectra shows that all transition features, energy positions, and relative intensities can be reproduced in the energy range up to 60 eV above threshold when using clusters containing at least 80 atoms and extending over a sphere at least 0.6 nm in radius away from the absorber. Mg and Fe are entirely in the expected structural sites in the four investigated end members. None of the models of Mg and Fe ordering in the octahedral site for the Fe50 olivine compound proposed so far is verified; thus Fe-Mg ordering still remains an open problem for olivines of intermediate compositions.
学科领域Physics
研究领域[WOS]Physics ; Physics
DOI10.1103/PhysRevB.69.104106
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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:000220813500025
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被引频次:11[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/311005/240914
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,Wu, ZY,Mottana, A,et al. X-ray absorption near-edge structure at the Mg and FeK edges in olivine minerals[J]. PHYSICAL REVIEW B,2004,69(10):104106.
APA 吴自玉.,Wu, ZY.,Mottana, A.,Marcelli, A.,Paris, E.,...&Cibin, G.(2004).X-ray absorption near-edge structure at the Mg and FeK edges in olivine minerals.PHYSICAL REVIEW B,69(10),104106.
MLA 吴自玉,et al."X-ray absorption near-edge structure at the Mg and FeK edges in olivine minerals".PHYSICAL REVIEW B 69.10(2004):104106.
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