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Auger Electron Angular Distribution of Double Core-Hole States in the Molecular Reference Frame
Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Cell and Molecular Biology, Molecular biophysics.
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2010 (English)In: Physical Review Letters, ISSN 0031-9007, Vol. 105, no 8, 083004- p.Article in journal (Refereed) Published
Abstract [en]

The Linac Coherent Light Source free electron laser is a source of high brightness x rays, 2×1011 photons in a ∼5  fs pulse, that can be focused to produce double core vacancies through rapid sequential ionization. This enables double core vacancy Auger electron spectroscopy, an entirely new way to study femtosecond chemical dynamics with Auger electrons that probe the local valence structure of molecules near a specific atomic core. Using 1.1 keV photons for sequential x-ray ionization of impulsively aligned molecular nitrogen, we observed a rich single-site double core vacancy Auger electron spectrum near 413 eV, in good agreement with ab initio calculations, and we measured the corresponding Auger electron angle dependence in the molecular frame.

Place, publisher, year, edition, pages
2010. Vol. 105, no 8, 083004- p.
National Category
Physical Sciences
URN: urn:nbn:se:uu:diva-135197DOI: 10.1103/PhysRevLett.105.083004ISI: 000281072100003OAI: oai:DiVA.org:uu-135197DiVA: diva2:374693
Available from: 2010-12-06 Created: 2010-12-06 Last updated: 2012-03-09Bibliographically approved

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Hajdu, Janos
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