| Autor: |
O’Shea, James N., Handrup, Karsten, Temperton, Robert H., Gibson, Andrew J., Nicolaou, Alessandro, Jaouen, Nicolas, Taylor, John B., Mayor, Louise C., Swarbrick, Janine C., Schnadt, Joachim |
| Předmět: |
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| Zdroj: |
Journal of Chemical Physics; 5/28/2018, Vol. 148 Issue 20, pN.PAG-N.PAG, 6p, 1 Diagram, 2 Graphs |
| Abstrakt: |
Two-dimensional resonant inelastic x-ray scattering (RIXS) and resonant photoelectron spectroscopy (RPES) maps are presented for multilayer and monolayer coverages of an aromatic molecule (bi-isonicotinic acid) on the rutile TiO2(110) single crystal surface. The data reveal ultra-fast intramolecular vibronic coupling upon core excitation from the N 1s orbital into the lowest unoccupied molecular orbital (LUMO) derived resonance. In the RIXS measurements, this results in the splitting of the participator decay channel into a purely elastic line which disperses linearly with excitation energy and a vibronic coupling channel at constant emission energy. In the RPES measurements, the vibronic coupling results in a linear shift in binding energy of the participator channel as the excitation is tuned over the LUMO-derived resonance. Localisation of the vibrations on the molecule on the femtosecond time scale results in predominantly inelastic scattering from the core-excited state in both the physisorbed multilayer and the chemisorbed monolayer. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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