Ultrafast charge transfer times of chemisorbed species from auger resonant raman studies

C. Keller; M. Stichler; G. Comelli; F. Esch; S. Lizzit; W. Wurth; D. Menzel

doi:10.1103/PhysRevLett.80.1774

Ultrafast charge transfer times of chemisorbed species from auger resonant raman studies

C. Keller, M. Stichler, G. Comelli, F. Esch, S. Lizzit, W. Wurth, D. Menzel

Chair of Experimental Physics

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95 Scopus citations

Abstract

We demonstrate that high resolution autoionization studies for core excitations under Auger resonant Raman (ARR) conditions can be used to extract extremely fast charge transfer (CT) relaxation times for chemisorbed molecules on a metal surface. For the O1s and C1s bound resonances of CO on Ru(0001), ARR behavior is almost completely suppressed; from its small remnant detectable by its linear dispersion with photon energy, CT times below 1 fs can be determined. For CO on a Xe spacer, only dispersive Raman-type decay is seen; i.e., no CT occurs.

Original language	English
Pages (from-to)	1774-1777
Number of pages	4
Journal	Physical Review Letters
Volume	80
Issue number	8
DOIs	https://doi.org/10.1103/PhysRevLett.80.1774
State	Published - 23 Feb 1998

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10.1103/PhysRevLett.80.1774

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abstract = "We demonstrate that high resolution autoionization studies for core excitations under Auger resonant Raman (ARR) conditions can be used to extract extremely fast charge transfer (CT) relaxation times for chemisorbed molecules on a metal surface. For the O1s and C1s bound resonances of CO on Ru(0001), ARR behavior is almost completely suppressed; from its small remnant detectable by its linear dispersion with photon energy, CT times below 1 fs can be determined. For CO on a Xe spacer, only dispersive Raman-type decay is seen; i.e., no CT occurs.",

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AU - Keller, C.

AU - Stichler, M.

AU - Comelli, G.

AU - Esch, F.

AU - Lizzit, S.

AU - Wurth, W.

AU - Menzel, D.

PY - 1998/2/23

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AB - We demonstrate that high resolution autoionization studies for core excitations under Auger resonant Raman (ARR) conditions can be used to extract extremely fast charge transfer (CT) relaxation times for chemisorbed molecules on a metal surface. For the O1s and C1s bound resonances of CO on Ru(0001), ARR behavior is almost completely suppressed; from its small remnant detectable by its linear dispersion with photon energy, CT times below 1 fs can be determined. For CO on a Xe spacer, only dispersive Raman-type decay is seen; i.e., no CT occurs.

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Ultrafast charge transfer times of chemisorbed species from auger resonant raman studies

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