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Journal Article

Photoelectron recapture observed via second-step Auger decay

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Hentges,  Rainer
Molecular Physics, Fritz Haber Institute, Max Planck Society;

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Viefhaus,  Jens
Molecular Physics, Fritz Haber Institute, Max Planck Society;

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Becker,  Uwe
Molecular Physics, Fritz Haber Institute, Max Planck Society;

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Citation

Hentges, R., Müller, N., Viefhaus, J., Heinzmann, U., & Becker, U. (2004). Photoelectron recapture observed via second-step Auger decay. Journal of Physics B: Atomic, Molecular and Optical Physics, 37(13), L267-L273. doi:10.1088/0953-4075/37/13/L03.


Cite as: https://hdl.handle.net/11858/00-001M-0000-0011-0C24-4
Abstract
Electron spectra of second-step Auger decay were taken in small steps in the vicinity of the Ne 1s → np resonances and in the near threshold regime. The spectra reveal that above the K-shell ionization limit energetically forbidden second-step Auger decay has still considerable intensity. We attribute this intensity to a recapture process of the primary photoelectron into unoccupied states and subsequent emission of a valence electron via second-step or cascade Auger decay. It is to our knowledge the first observation of delayed cascade Auger post collision interaction.