TY - JOUR
T1 - XAFS in the high-energy region
AU - Nishihata, Y.
AU - Kamishima, O.
AU - Kubozono, Y.
AU - Maeda, H.
AU - Emura, S.
PY - 1998/5/1
Y1 - 1998/5/1
N2 - 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.
AB - 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.
KW - Extended X-ray fine-structure (EXAFS)
KW - Structure parameters
KW - X-ray absorption fine-structure (XAFS)
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U2 - 10.1107/S0909049597016749
DO - 10.1107/S0909049597016749
M3 - Article
C2 - 15263727
AN - SCOPUS:0032375436
SN - 0909-0495
VL - 5
SP - 1007
EP - 1009
JO - Journal of Synchrotron Radiation
JF - Journal of Synchrotron Radiation
IS - 3
ER -