Short-Range Order Full Multiple Scattering Approach to the Polarized Iodine L_1-Edge XANES of IBr Doped in trans-Polyacetylene
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概要
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In this work, iodine L.-XAN[S of (CH([Br),). excited by two Iinearly polarized X-ray are analyzed by use of the short-range order full multiple scattering calculations.The XANES analysis for E L c polarization (normal to the chain axis) gives us the in-formation on the I-C correlation. One useful information obtained here is that thenearest I-C distance is longer than the sum of the van der Waals radii of I and C. Thisresult can explain the increase of the anisotropy of the electric conductivity by IBrdoping. Our XANES analyses can also predict charge distribution on polyanionsI.Br- as q.= -0.5 - -0.7, q.=O.2 -0.3 and q.= -0.5 - -0.7, where I""I""Br"",q. -F- q.A- q.= - l. The observed sharp peak in El c XANES is found to be due to theabsorption by the end iodine atom.
- 社団法人日本物理学会の論文
- 1988-01-15
著者
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FUJIKAWA Takashi
Faculty of Engineering,Yokohama National University
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Kaindl Gunter
Fachbereich Physik Freie Universitat Berlin
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Krone Wolfgang
Fachbereich Physik Freie Universitat Berlin
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Tashiro Kouji
Faculty Of Engineering Yokohama National University
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Fujikawa Takashi
Faculty Of Engineering Yokohama National University
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Fujikawa Takashi
Faculty Of Agriculture Shizuoka University
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