Recent progress in the investigation of core hole-induced photon stimulated desorption from adsorbates: Excitation site-dependent bond breaking, and charge rearrangement

P. Feulner; R. Romberg; S. P. Frigo; R. Weimar; M. Gsell; A. Ogurtsov; D. Menzel

doi:10.1016/S0039-6028(00)00006-6

Recent progress in the investigation of core hole-induced photon stimulated desorption from adsorbates: Excitation site-dependent bond breaking, and charge rearrangement

P. Feulner
, R. Romberg
, S. P. Frigo
, R. Weimar
, M. Gsell
, A. Ogurtsov
, D. Menzel

Chair of Experimental Physics

Technical University of Munich
Argonne National Laboratory
B. Verkin Institute for Low Temperature Physics and Engineering of the National Academy of Sciences of Ukraine

Research output: Contribution to journal › Conference article › peer-review

31 Scopus citations

Abstract

We report photon stimulated desorption (PSD) of neutral and ionic molecules and atoms from CO chemisorbed on Ru(001) and Cu(111), and from N₂ chemisorbed on Ru(001). Comparing branching ratios and spectral features for the O1s and N1s regions, we demonstrate that desorbing neutrals and ions are supplementary probes for the entire region of one- and multi-electron excitations, bearing valuable information on the transfer of energy and charge. For the primary [N1s]π* excitation of N₂/Ru(001), we find excitation site-dependent branching into desorption of N₂⁰, N⁰ and N⁺. PSD of neutral N atoms predominates for excitations of the N atom close to the surface, whereas mainly neutral N₂ molecules and N⁺ ions are ejected for excitations of the outer N atom. At the Ru 3p substrate thresholds we find significant enhancements of the N⁺ and N²⁺ yields from N₂/Ru(001), and discuss the electronic nature of the underlying energy transfer mechanism.

Original language	English
Pages (from-to)	41-52
Number of pages	12
Journal	Surface Science
Volume	451
Issue number	1
DOIs	https://doi.org/10.1016/S0039-6028(00)00006-6
State	Published - 20 Apr 2000
Event	DIET-8: 8th International Workshop on Desorption Induced by Electronic Transitions - Long Beach, NJ, USA Duration: 27 Sep 1999 → 1 Oct 1999

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10.1016/S0039-6028(00)00006-6

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title = "Recent progress in the investigation of core hole-induced photon stimulated desorption from adsorbates: Excitation site-dependent bond breaking, and charge rearrangement",

abstract = "We report photon stimulated desorption (PSD) of neutral and ionic molecules and atoms from CO chemisorbed on Ru(001) and Cu(111), and from N2 chemisorbed on Ru(001). Comparing branching ratios and spectral features for the O1s and N1s regions, we demonstrate that desorbing neutrals and ions are supplementary probes for the entire region of one- and multi-electron excitations, bearing valuable information on the transfer of energy and charge. For the primary [N1s]π* excitation of N2/Ru(001), we find excitation site-dependent branching into desorption of N20, N0 and N+. PSD of neutral N atoms predominates for excitations of the N atom close to the surface, whereas mainly neutral N2 molecules and N+ ions are ejected for excitations of the outer N atom. At the Ru 3p substrate thresholds we find significant enhancements of the N+ and N2+ yields from N2/Ru(001), and discuss the electronic nature of the underlying energy transfer mechanism.",

author = "P. Feulner and R. Romberg and Frigo, \{S. P.\} and R. Weimar and M. Gsell and A. Ogurtsov and D. Menzel",

note = "Funding Information: We thank the staffs of HASYLAB and BESSY for help during the experiments, in particular T. M{\"o}ller, C. Nowak, A. Kolmakov, C. Hellwig and C. Jung. We very much thank Norbert Heckmair, who passed away so untimely, for his help. Stimulating discussions with W. Wurth are gratefully acknowledged. This study has been supported by the Deutsche Forschungsgemeinschaft (Projects SFB 338 C10 and Me 266-21/2). S. Frigo acknowledges support by the US Department of Energy, Basic Energy Sciences, Office of Energy Research, under Contract No. W-31-109-ENG-38. ; DIET-8: 8th International Workshop on Desorption Induced by Electronic Transitions ; Conference date: 27-09-1999 Through 01-10-1999",

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doi = "10.1016/S0039-6028(00)00006-6",

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TY - JOUR

T1 - Recent progress in the investigation of core hole-induced photon stimulated desorption from adsorbates

T2 - DIET-8: 8th International Workshop on Desorption Induced by Electronic Transitions

AU - Feulner, P.

AU - Romberg, R.

AU - Frigo, S. P.

AU - Weimar, R.

AU - Gsell, M.

AU - Ogurtsov, A.

AU - Menzel, D.

N1 - Funding Information: We thank the staffs of HASYLAB and BESSY for help during the experiments, in particular T. Möller, C. Nowak, A. Kolmakov, C. Hellwig and C. Jung. We very much thank Norbert Heckmair, who passed away so untimely, for his help. Stimulating discussions with W. Wurth are gratefully acknowledged. This study has been supported by the Deutsche Forschungsgemeinschaft (Projects SFB 338 C10 and Me 266-21/2). S. Frigo acknowledges support by the US Department of Energy, Basic Energy Sciences, Office of Energy Research, under Contract No. W-31-109-ENG-38.

PY - 2000/4/20

Y1 - 2000/4/20

N2 - We report photon stimulated desorption (PSD) of neutral and ionic molecules and atoms from CO chemisorbed on Ru(001) and Cu(111), and from N2 chemisorbed on Ru(001). Comparing branching ratios and spectral features for the O1s and N1s regions, we demonstrate that desorbing neutrals and ions are supplementary probes for the entire region of one- and multi-electron excitations, bearing valuable information on the transfer of energy and charge. For the primary [N1s]π* excitation of N2/Ru(001), we find excitation site-dependent branching into desorption of N20, N0 and N+. PSD of neutral N atoms predominates for excitations of the N atom close to the surface, whereas mainly neutral N2 molecules and N+ ions are ejected for excitations of the outer N atom. At the Ru 3p substrate thresholds we find significant enhancements of the N+ and N2+ yields from N2/Ru(001), and discuss the electronic nature of the underlying energy transfer mechanism.

AB - We report photon stimulated desorption (PSD) of neutral and ionic molecules and atoms from CO chemisorbed on Ru(001) and Cu(111), and from N2 chemisorbed on Ru(001). Comparing branching ratios and spectral features for the O1s and N1s regions, we demonstrate that desorbing neutrals and ions are supplementary probes for the entire region of one- and multi-electron excitations, bearing valuable information on the transfer of energy and charge. For the primary [N1s]π* excitation of N2/Ru(001), we find excitation site-dependent branching into desorption of N20, N0 and N+. PSD of neutral N atoms predominates for excitations of the N atom close to the surface, whereas mainly neutral N2 molecules and N+ ions are ejected for excitations of the outer N atom. At the Ru 3p substrate thresholds we find significant enhancements of the N+ and N2+ yields from N2/Ru(001), and discuss the electronic nature of the underlying energy transfer mechanism.

UR - https://www.scopus.com/pages/publications/0033742354

U2 - 10.1016/S0039-6028(00)00006-6

DO - 10.1016/S0039-6028(00)00006-6

M3 - Conference article

AN - SCOPUS:0033742354

SN - 0039-6028

VL - 451

SP - 41

EP - 52

JO - Surface Science

JF - Surface Science

IS - 1

Y2 - 27 September 1999 through 1 October 1999

ER -

Recent progress in the investigation of core hole-induced photon stimulated desorption from adsorbates: Excitation site-dependent bond breaking, and charge rearrangement

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