| Numéro |
J. Phys. Colloques
Volume 48, Numéro C9, Décembre 1987
X-Ray and Inner-Shell ProcessesVol. 1 |
|
|---|---|---|
| Page(s) | C9-911 - C9-914 | |
| DOI | https://doi.org/10.1051/jphyscol:19879161 | |
X-Ray and Inner-Shell Processes
Vol. 1
J. Phys. Colloques 48 (1987) C9-911-C9-914
DOI: 10.1051/jphyscol:19879161
Department of Physics, Tokyo Institute of Technology, 2-12-1, Oh-okayama, Meguro-ku, Tokyo 152, Japan
Vol. 1
J. Phys. Colloques 48 (1987) C9-911-C9-914
DOI: 10.1051/jphyscol:19879161
THRESHOLD EXPONENTS IN ANOMALOUS ABSORPTION SPECTRA OF HEAVY ALKALI METALS
Y. OHMURA, A. OGIWARA and S. SATODepartment of Physics, Tokyo Institute of Technology, 2-12-1, Oh-okayama, Meguro-ku, Tokyo 152, Japan
Abstract
Threshold exponents of soft X-ray absorption and emission spectra of heavy alkali metals(K, Rb and Cs), in the theory of Nozières and De Dominicis are calculated. The phase shifts are obtained in the Born approximation by taking account of : (1) the effect of characteristic features of the Bloch electrons in the effective mass, (2) structures of the hole in the hole potential and (3) the effect of the screening on the hole potential. For Cs, pulling-in of the localized 4f-orbital which results in the screening of the 5p-hole potential in the final state is proposed.