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5 citations found for Kamishima,

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Acta Cryst. (1993). A49, c399-c400
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XAFS (X-ray absorption fine-structure) spectra were measured near K-absorption edges of Ce (40.5 keV), Dy (53.8 keV), Ta (67.4 keV) and Pt (78.4 keV). The blunt K-edge jump due to the finite lifetime of the core hole was observed. This makes it difficult to extract EXAFS (extended X-ray absorption fine-structure) functions at low k values. Local structure parameters can be evaluated from the EXAFS spectra above K-absorption edges in the high-energy region as well as from those above LIII-edges. It was found that the finite-lifetime effect of the core hole is effectively taken into the photoelectron mean-free-path term, as predicted theoretically.


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At 11.0 GPa the diamond-type structure changes in the high-pressure phase with an increse in coordination numbers, and prolonged bonding distances make the magnitudes of [sigma](2) larger.

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The local structures and mean-square relative displacements were determined in tridymite, quartz, stishovite, quartz-type GeO2 and rutile-type GeO2.

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