Unambiguous observation of F-atom core-hole localization in CF4 through body-frame photoelectron angular distributions
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2017 American Physical Society. A dramatic symmetry breaking in K-shell photoionization of the CF4 molecule in which a core-hole vacancy is created in one of four equivalent fluorine atoms is displayed in the molecular frame angular distribution of the photoelectrons. Observing the photoejected electron in coincidence with an F+ atomic ion after Auger decay is shown to select the dissociation path where the core hole was localized almost exclusively on that atom. A combination of measurements and ab initio calculations of the photoelectron angular distribution in the frame of the recoiling CF3+ and F+ atoms elucidates the underlying physics that derives from the Ne-like valence structure of the F(1s-1) core-excited atom.
author list (cited authors)
McCurdy, C. W., Rescigno, T. N., Trevisan, C. S., Lucchese, R. R., Gaire, B., Menssen, A., ... Weber, T. h.
complete list of authors
McCurdy, CW||Rescigno, TN||Trevisan, CS||Lucchese, RR||Gaire, B||Menssen, A||Schoeffler, MS||Gatton, A||Neff, J||Stammer, PM||Rist, J||Eckart, S||Berry, B||Severt, T||Sartor, J||Moradmand, A||Jahnke, T||Landers, AL||Williams, JB||Ben-Itzhak, I||Doerner, R||Belkacem, A||Weber, Th