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Ultrafast charge transfer and atomic orbital polarization

Deppe, M.; Foehlisch, A.; Hennies, Franz LU ; Sanchez-Portal, D.; Echenique, P. M. and Wurth, W. (2007) In Journal of Chemical Physics 127(17).
Abstract
The role of orbital polarization for ultrafast charge transfer between an atomic adsorbate and a substrate is explored. Core hole clock spectroscopy with linearly polarized x-ray radiation allows to selectively excite adsorbate resonance states with defined spatial orientation relative to the substrate surface. For c(4x2)S/Ru(0001) the charge transfer times between the sulfur 2s(-1)3p(*+1) antibonding resonance and the ruthenium substrate have been studied, with the 2s electron excited into the 3p(perpendicular to)(*) state along the surface normal and the 3p(parallel to)(*) state in the surface plane. The charge transfer times are determined as 0.18 +/- 0.07 and 0.84 +/- 0.23 fs, respectively. This variation is the direct consequence of... (More)
The role of orbital polarization for ultrafast charge transfer between an atomic adsorbate and a substrate is explored. Core hole clock spectroscopy with linearly polarized x-ray radiation allows to selectively excite adsorbate resonance states with defined spatial orientation relative to the substrate surface. For c(4x2)S/Ru(0001) the charge transfer times between the sulfur 2s(-1)3p(*+1) antibonding resonance and the ruthenium substrate have been studied, with the 2s electron excited into the 3p(perpendicular to)(*) state along the surface normal and the 3p(parallel to)(*) state in the surface plane. The charge transfer times are determined as 0.18 +/- 0.07 and 0.84 +/- 0.23 fs, respectively. This variation is the direct consequence of the different adsorbate-substrate orbital overlap. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Journal of Chemical Physics
volume
127
issue
17
publisher
American Institute of Physics
external identifiers
  • wos:000250787300045
  • scopus:35948999204
ISSN
0021-9606
DOI
10.1063/1.2781395
language
English
LU publication?
yes
id
440d223f-f3ae-4506-8e9d-34779bdbea43 (old id 971884)
date added to LUP
2008-01-29 14:19:53
date last changed
2017-01-01 04:50:34
@article{440d223f-f3ae-4506-8e9d-34779bdbea43,
  abstract     = {The role of orbital polarization for ultrafast charge transfer between an atomic adsorbate and a substrate is explored. Core hole clock spectroscopy with linearly polarized x-ray radiation allows to selectively excite adsorbate resonance states with defined spatial orientation relative to the substrate surface. For c(4x2)S/Ru(0001) the charge transfer times between the sulfur 2s(-1)3p(*+1) antibonding resonance and the ruthenium substrate have been studied, with the 2s electron excited into the 3p(perpendicular to)(*) state along the surface normal and the 3p(parallel to)(*) state in the surface plane. The charge transfer times are determined as 0.18 +/- 0.07 and 0.84 +/- 0.23 fs, respectively. This variation is the direct consequence of the different adsorbate-substrate orbital overlap.},
  author       = {Deppe, M. and Foehlisch, A. and Hennies, Franz and Sanchez-Portal, D. and Echenique, P. M. and Wurth, W.},
  issn         = {0021-9606},
  language     = {eng},
  number       = {17},
  publisher    = {American Institute of Physics},
  series       = {Journal of Chemical Physics},
  title        = {Ultrafast charge transfer and atomic orbital polarization},
  url          = {http://dx.doi.org/10.1063/1.2781395},
  volume       = {127},
  year         = {2007},
}