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Polarization and orientational effect in the x‐ray reflection and absorption spectra of sulfur in hexagonal CdS
Author(s) -
Taracheva E. Yu.,
Filatova E. O.,
André J.M.
Publication year - 2007
Publication title -
x‐ray spectrometry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.447
H-Index - 45
eISSN - 1097-4539
pISSN - 0049-8246
DOI - 10.1002/xrs.972
Subject(s) - spectral line , polarization (electrochemistry) , absorption spectroscopy , scattering , chemistry , atomic physics , absorption (acoustics) , synchrotron radiation , reflection (computer programming) , electron , molecular physics , physics , optics , quantum mechanics , astronomy , computer science , programming language
The reflection spectra of hexagonal CdS in the vicinity of the SK and SL 2, 3 absorption edges were studied using polarized synchrotron radiation. The absorption spectra were calculated using the Kramers–Kronig relationship. It was established that both polarization dependence of the SL 2, 3 absorption spectra and orientational dependence of the SK absorption spectra are caused by the transitions into the p symmetry states split by the crystal field and by the photoelectron scattering from the atoms disposed in distant coordination shells. Because of the low probability of the transition of the electrons from the S 2p level into the p symmetry final states of the conduction band, the polarization dependence of the SL 2, 3 absorption spectra is weak. Copyright © 2007 John Wiley & Sons, Ltd.