Theory on Extended X-Ray Emission Spectra

作者: Takashi Fujikawa , Jun Kawai

DOI: 10.1143/JPSJ.68.4032

关键词:

摘要: A simple theoretical approach is given to study XAFS-like spectra (extended X-ray emission fine structure, EXEFS) observed in fluorescence based on one-step quantum mechanical formula derived by Almbladh and Hedin. Electronic relaxation shake-off processes are crucial explain the spectral features. Here “shake-off” different from those found typical XPS XAFS spectra; electrons ejected during processes. Formal EXEFS formulas here same as usually used formula. However, we should carefully use phase shifts taking account of effects due additional core hole production; they be analyses. The radial dipole integral replaced corresponding monopole

参考文章(18)
J. Kawai, K. Hayashi, Extended X-ray emission fine structure (EXEFS) Journal of Electron Spectroscopy and Related Phenomena. ,vol. 92, pp. 243- 245 ,(1998) , 10.1016/S0368-2048(98)00129-7
T. Åberg, Theory of the Radiative Auger Effect Physical Review A. ,vol. 4, pp. 1735- 1740 ,(1971) , 10.1103/PHYSREVA.4.1735
Jun Kawai, Hideyuki Takahashi, Si X-ray absorption near edge structure (XANES) of Si, SiC, SiO2, and Si3N4 measured by an electron probe X-ray microanalyzer (EPMA) Spectrochimica Acta Part B: Atomic Spectroscopy. ,vol. 54, pp. 231- 234 ,(1999) , 10.1016/S0584-8547(98)00153-0
Takashi Fujikawa, XAFS Theory at Zero and Finite Temperature Journal of the Physical Society of Japan. ,vol. 68, pp. 2444- 2456 ,(1999) , 10.1143/JPSJ.68.2444
Lars Hedin, Extrinsic and intrinsic processes in EXAFS Physica B: Condensed Matter. ,vol. 158, pp. 344- 346 ,(1989) , 10.1016/0921-4526(89)90307-4
M Ya Amusia, I S Lee, Radiative Semi-Auger Decay in Atoms Physica Scripta. ,vol. 41, pp. 23- 27 ,(1992) , 10.1088/0031-8949/1992/T41/004
Jun Kawai, Takayuki Nakajima, Takehiro Inoue, Hirohiko Adachi, Masaharu Yamaguchi, Kuniko Maeda, Sadayo Yabuki, Chemical effects on the intensity of Ti Kη (radiative Auger satellite) X-ray fluorescence spectra Analyst. ,vol. 119, pp. 601- 603 ,(1994) , 10.1039/AN9941900601
C-O Almbladh, On the theory of photoemission Physica Scripta. ,vol. 32, pp. 341- 352 ,(1985) , 10.1088/0031-8949/32/4/018
Kouichi Hayashi, Jun Kawai, Yasuhiro Awakura, Extended fine structure in characteristic X-ray fluorescence: A novel structural analysis method of condensed systems Spectrochimica Acta Part B: Atomic Spectroscopy. ,vol. 52, pp. 2169- 2172 ,(1997) , 10.1016/S0584-8547(97)00097-9