Decay dynamics of photoexcited alkali chemisorbates: Real-time investigations in the femtosecond regime
- 15 August 1999
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 60 (7), 5016-5028
- https://doi.org/10.1103/physrevb.60.5016
Abstract
The inelastic decay time of photoexcited cesium and sodium adsorbed on different single-crystal surfaces has been investigated by means of time-resolved two-photon photoemission. Especially in the case of cesium, we observe a surprisingly high lifetime. For Cs/Cu(111) we obtain a value of Intra-atomic hybridization, the specific band structure of the substrate, and adsorption site effects may be responsible for this behavior. These different mechanisms are discussed in detail.
Keywords
This publication has 46 references indexed in Scilit:
- Incorporation of alkali metals on Pt(111)Physical Review B, 1996
- Ultrafast Electron Dynamics at Cu(111): Response of an Electron Gas to Optical ExcitationPhysical Review Letters, 1996
- Hot electron mediated photodesorption: A time-dependent approach applied to NO/Pt(111)The Journal of Chemical Physics, 1995
- Chemical trends and bonding mechanisms for isloated adsorbates on Al(111)Physical Review B, 1994
- Nature of the charge localized between alkali adatoms and metal substratesPhysical Review B, 1994
- Desorption induced by multiple electronic transitionsPhysical Review Letters, 1992
- Femtosecond time-resolved surface reaction: Desorption of Co from Cu(111) in <325 fsecPhysical Review Letters, 1992
- Electronic structure of alkali-metal overlayers on the semi-infinite jellium surfacePhysical Review B, 1989
- Correlation between electron loss and inverse photoemission measurements of alkali metals on metal surfacesPhysical Review B, 1988
- Studies of separate adsorption and coadsorption of Cs andon Cu(100)Physical Review B, 1982