TY  - JOUR
AU  - Hauko, R.
AU  - Gomilšek, J. Padežnik
AU  - Kodre, A.
AU  - Arčon, I.
AU  - Luin, U.
TI  - Iodine K- and L-edge X-ray absorption spectra of HI: The effect of molecular orbitals and core subshells
JO  - Radiation physics and chemistry
VL  - 229
SN  - 0969-806X
CY  - Frankfurt, M.
PB  - Pergamon Press
M1  - PUBDB-2025-00065
SP  - 112509
PY  - 2025
N1  - ISSN 0969-806X not unique: **3 hits**.  Waiting for fulltext 
AB  - Analysis of the recently measured absorption spectra of molecular HI at K and L edges of iodine, in parallel withpreviously measured spectra of noble gas Xe and the K edge spectrum of atomic I, is presented. A strongdependence of some valence multielectron photoexcitation features on the orbital momentum of the core vacancyis found, attributed to the change of the symmetry of the HI molecule: the shake-up coexcitation of avalence electron to a free molecular orbital is much stronger at L3 than L1 edge. The effect of angular momentumof the core hole on the shake processes of deeper multielectron photoexcitations is found negligible. Both HI andXe exhibit a much weaker one-electron transition [1s]6p than monatomic I. At the K edge, the strength ofcoexcitations of 4d, 4p and 3d subshells in atomic I is close to the HI and Xe. The same is found for HI and Xe atthe L edges, due to a weak contribution of the additional free molecular orbital in HI.
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:001411244200001
DO  - DOI:10.1016/j.radphyschem.2025.112509
UR  - https://bib-pubdb1.desy.de/record/620187
ER  -