Intrinsic linewidths of electronic image-potential states versus the momentum parallel to the surface on Ag(1 0 0) have been measured with angle resolved two-photon photoemission using the time of flight technique. The influence of the time of flight spectrometer angular acceptance on intrinsic linewidth measurements is taken into account and a proper data analysis is proposed. The inverse linewidth as a function of parallel momentum is compared with time-resolved measurements of image-state lifetimes on Ag(1 0 0) and Cu(1 0 0) reported in the literature. The data analysis shows that decay dynamics of image potential states in Ag and Cu may be determined by different physical mechanisms.

Giannetti, C., Galimberti, G., Pagliara, S., Ferrini, G., Banfi, F., Fausti, D., Parmigiani, F., Measurements of intrinsic linewidth versus parallel momentum of image-potential states on Ag(100), <<SURFACE SCIENCE>>, 2004; (566): 502-507. [doi:0.1140/epjb/e2006-00337-0] [http://hdl.handle.net/10807/49213]

Measurements of intrinsic linewidth versus parallel momentum of image-potential states on Ag(100)

Giannetti, Claudio;Galimberti, Gianluca;Pagliara, Stefania;Ferrini, Gabriele;Banfi, Francesco;Fausti, Daniele;Parmigiani, Fulvio
2004

Abstract

Intrinsic linewidths of electronic image-potential states versus the momentum parallel to the surface on Ag(1 0 0) have been measured with angle resolved two-photon photoemission using the time of flight technique. The influence of the time of flight spectrometer angular acceptance on intrinsic linewidth measurements is taken into account and a proper data analysis is proposed. The inverse linewidth as a function of parallel momentum is compared with time-resolved measurements of image-state lifetimes on Ag(1 0 0) and Cu(1 0 0) reported in the literature. The data analysis shows that decay dynamics of image potential states in Ag and Cu may be determined by different physical mechanisms.
Inglese
Giannetti, C., Galimberti, G., Pagliara, S., Ferrini, G., Banfi, F., Fausti, D., Parmigiani, F., Measurements of intrinsic linewidth versus parallel momentum of image-potential states on Ag(100), <<SURFACE SCIENCE>>, 2004; (566): 502-507. [doi:0.1140/epjb/e2006-00337-0] [http://hdl.handle.net/10807/49213]
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/10807/49213
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