Spectroscopy and Dynamics of the Electronic Decay of Core Electron Excitations in Isolated and Chemisorbed Molecules

  • W. Eberhardt
Part of the Springer Series in Surface Sciences book series (SSSUR, volume 35)


Over the past decade studies of the decay processes following both core-electron excitation as well as core-electron ionization have been carried out for a variety of small molecules in gas phase and in a physisorbed or chemisorbed state. This was made possible through the application of synchrotron radiation used in preparing well-defined highly-excited states. These investigations of the electronic decay of specifically-prepared electronic configurations offer unique ways to study electron correlation and dynamic charge transfer and screening processes in well characterized electronic systems. Moreover, high-resolution studies taken with a resolving power sufficient to resolve vibrational substates in both the excitation and decay channels, reveal information about the time evolution of the vibrational wave functions in the intermediate core-excited state on the time scale of a few femtoseconds. Thus, these experiments probe the limits of the quantum mechanical description of the eigenstates of the molecular system integrated over the lifetime of the core hole.


Excitation Energy Rydberg State Auger Spectrum Photoemission Spectrum Core Hole 
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© Springer-Verlag Berlin Heidelberg 1995

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  • W. Eberhardt

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