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Young's double-slit experiment using two-center core-level photoemission: Photoelectron scattering effects
KTH, School of Biotechnology (BIO), Theoretical Chemistry (closed 20110512).
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2007 (English)In: Journal of Electron Spectroscopy and Related Phenomena, ISSN 0368-2048, E-ISSN 1873-2526, Vol. 156, 73-77 p.Article in journal (Refereed) Published
Abstract [en]

Core-level photoemission from N-2 can be considered as an analogue of Young's double-slit experiment (YDSE) in which the double-slit is replaced by a pair of N 1s orbitals. N 1s photoelectron spectra of N-2 are measured in the extended photon energy region up to similar to 1 keV at unprecedented resolution. The measured ratio between the 1 sigma(g) and 1 sigma(u) photoionization cross-sections oscillates as a function of electron momentum due to interference effects analogue to YDSE. We found a shift of the interference pattern with respect to a prediction by a simple model for coherent two-center emission, the Cohen-Fano formula, and attributed it to photoelectron scattering by the neighboring atom. We demonstrate that the shift can be used to determine the scattering phase of the photoelectron.

Place, publisher, year, edition, pages
2007. Vol. 156, 73-77 p.
Keyword [en]
core-level photoemission, interference, double-slit experiment, nitrogen molecule, X-ray photoelectron spectroscopy, vibrationally resolved photoionization, photochemistry beamline bl27su, absorption fine-structure, shell photoionization, n-2 molecule, ck-shell, interference, spectroscopy, 1-sigma(g), radiation
National Category
Physical Sciences
Identifiers
URN: urn:nbn:se:kth:diva-16650ISI: 000246726300264Scopus ID: 2-s2.0-34247100131OAI: oai:DiVA.org:kth-16650DiVA: diva2:334692
Available from: 2010-08-05 Created: 2010-08-05 Last updated: 2017-12-12Bibliographically approved

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