Jach, T.
, Vinson, J.
, Woodcox, M.
, Jonas, A.
, Frenzel, K.
, Unterumsberger, R.
and Beckhoff, B.
(2025),
Universality of extreme broadening mechanisms in some near-edge x-ray spectra, Physical Review B, [online], https://doi.org/10.1103/PhysRevB.111.125107, https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=958635
(Accessed January 14, 2026)
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Universality of extreme broadening mechanisms in some near-edge x-ray spectra
Published
Author(s)
, , , Adrian Jonas, Katja Frenzel, Rainer Unterumsberger, Burkhard Beckhoff
Abstract
Extreme broadening previously observed in certain N x-ray fluorescence lines excited near the N K-edge in nitrates has been observed in the S L x-ray fluorescence in sodium sulfate, Na2SO4. It is explained as a large imaginary self-energy corresponding to an anomalously short lifetime of quasiparticles in one of the valence bands of these compounds. Our latest measurement and the corresponding many-body theory indicate that this is a general effect not specific to nitrates.Citation
Physical Review B
Volume
111
Issue
12
Pub Type
Journals
Download Paper
Keywords
sodium sulfate, x-ray emission , x-ray absorption, RIXS
Citation
Issues
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Created March 5, 2025, Updated January 13, 2026