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Abstract: One-dimensional model for study of sub-femtosecond experiment with metalsurface is put forward. The important features of the system, such as thepseudopotential for electron motion in the metal bulk, abrupt decrease of thenormal to the surface external electromagnetic field in the bulk, finite valueof the mean free path for electrons in the metal, and action on the ejectedelectron by the stationary screened positive hole in the metal are includedin the model. The results obtained reveal dependence of the streaking effect onthe final energy of the ejected electron. Meanwhile, the dependence of thestreaking on the character of the initial state localized or delocalizedappears to be more pronounced. This result may provide an additional mechanismfor interpretation of the results of very recent experiment Cavalieri\emph{et.al}, NATURE \textbf{449} 1029-1032 2007 .



Author: A.K. Kazansky, P.M. Echenique

Source: https://arxiv.org/







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