Rotational Doppler Effect: A Probe for Molecular Orbitals Anisotropy
2015 (English)In: Journal of Physical Chemistry Letters, ISSN 1948-7185, E-ISSN 1948-7185, Vol. 6, no 9, 1568-1572 p.Article in journal (Refereed) Published
The vibrationally resolved X-ray photoelectron spectra of X-2 Sigma(+)(g)(3 sigma(-1)(g)) and B-2 Sigma(+)(u)(2 sigma(-1)(u)) states of N-2(+) were recorded for different photon energies and orientations of the polarization vector. Clear dependencies of the spectral line widths on the X-ray polarization as well as on the symmetry of the final electronic states are observed. Contrary to the translational Doppler, the rotational Doppler broadening is sensitive to the photoelectron emission anisotropy. On the basis of theoretical modeling, we suggest that the different rotational Doppler broadenings observed for gerade and ungerade final states result from a Young's double-slit interference phenomenon.
Place, publisher, year, edition, pages
2015. Vol. 6, no 9, 1568-1572 p.
molecular orbitals anisotropy, rotational Doppler effect, translational Doppler effect, X-ray, Young's double slit interference
IdentifiersURN: urn:nbn:se:kth:diva-169268DOI: 10.1021/acs.jpclett.5b00325ISI: 000355014900013ScopusID: 2-s2.0-84928991263OAI: oai:DiVA.org:kth-169268DiVA: diva2:822087
FunderEU, FP7, Seventh Framework Programme, 252781Swedish Research Council
QC 201506162015-06-162015-06-122015-06-16Bibliographically approved