Document Detail


High energy resolution off-resonant spectroscopy for x-ray absorption spectra free of self-absorption effects.
MedLine Citation:
PMID:  24836243     Owner:  NLM     Status:  In-Data-Review    
Abstract/OtherAbstract:
X-ray emission spectra recorded in the off-resonant regime carry information on the density of unoccupied states. It is known that by employing the Kramers-Heisenberg formalism, the high energy resolution off-resonant spectroscopy (HEROS) is equivalent to the x-ray absorption spectroscopy (XAS) technique and provides the same electronic state information. Moreover, in the present Letter we demonstrate that the shape of HEROS spectra is not modified by self-absorption effects. Therefore, in contrast to the fluorescence-based XAS techniques, the recorded shape of the spectra is independent of the sample concentration or thickness. The HEROS may thus be used as an experimental technique when precise information about specific absorption features and their strengths is crucial for chemical speciation or theoretical evaluation.
Authors:
W Błachucki; J Szlachetko; J Hoszowska; J-Cl Dousse; Y Kayser; M Nachtegaal; J Sá
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Publication Detail:
Type:  Journal Article     Date:  2014-04-30
Journal Detail:
Title:  Physical review letters     Volume:  112     ISSN:  1079-7114     ISO Abbreviation:  Phys. Rev. Lett.     Publication Date:  2014 May 
Date Detail:
Created Date:  2014-05-19     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0401141     Medline TA:  Phys Rev Lett     Country:  United States    
Other Details:
Languages:  eng     Pagination:  173003     Citation Subset:  IM    
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