Dynamics of an excess electron at metal/polar interfaces

Article Abstract:

The low-temperature equilibrium and nonequilibrium solvation dynamics of an excess electron in bulk and at a surface interface are characterized using mixed quantum/classical simulation methods. The temperature dependence of the bulk response is shown to minimal, indicating that the large-scale hydrogen bond breaking and diffusive motion may not be playing roles in the solvation dynamics.

United States, Comparative analysis, Solvation, Electrons, Temperature effects

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Ultrafast electron dynamics at metal interfaces: intraband relaxation of image state electrons of friction

Article Abstract:

Two-photon photoemission of image potential states above monolayers of p-xylene/Ag(111) shows that electrons with different momenta have very different rise and decay rates as a function of parallel momentum. The dynamics are due to energy and momentum loss (intraband relaxation), which is modeled as a stochastic process isomorphic to the overdamped motion of harmonic oscillator.

All Other Basic Inorganic Chemical Manufacturing, Petrochemical Manufacturing, Industrial inorganic chemicals, not elsewhere classified, Gold Compounds, Xylenes, Design and construction, Monomolecular films, Xylene, Relaxation (Nuclear physics)

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Determination of band curvatures by angle-resolved two-photon photoemission in thin films of [C.sub.60] on Ag(111)

Article Abstract:

Angle-resolved two-photon photoemission (2PPE) spectroscopy is used to determine the thickness-dependent interfacial band structure for thin films of [C.sub.60] on Ag(111). The results have shown that angle-resolved 2PPE can be used as a direct experimental probe of band structure in systems with quite complicated electronic energy levels.

Calibration, Silver compounds, Structure

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