Attosecond dynamics of photoemission over a wide photon energy range
Christian Schröder,
Johann Riemensberger,
Roman Kuzian
et al.
Abstract:Dynamics of photoemission from surfaces are usually studied at low photon energies (<100 eV). Here, we report on new findings on these dynamics observed at a tungsten surface on the attosecond time scale at photon energies exceeding 100 eV, over a range of almost 50 eV.
While photoemission, a fundamental process in quantum mechanics, is often described within a semiclassical three-step model, we find that even at high photon energies only a full quantum treatment in one step predicts the measured attosecond… Show more
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