Distinguishing attosecond electron–electron scattering and screening in transition metals
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چکیده
منابع مشابه
Distinguishing attosecond electron-electron scattering and screening in transition metals.
Electron-electron interactions are the fastest processes in materials, occurring on femtosecond to attosecond timescales, depending on the electronic band structure of the material and the excitation energy. Such interactions can play a dominant role in light-induced processes such as nano-enhanced plasmonics and catalysis, light harvesting, or phase transitions. However, to date it has not bee...
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We study how a finite hybridization between a narrow correlated band and a wide conduction band affects the Mott transition. At zero temperature, the hybridization is found to be a relevant perturbation, so that the Mott transition is suppressed by Kondo screening. In contrast, a first-order transition remains at finite temperature, separating a local-moment phase and a Kondo-screened phase. Th...
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A. G. Borisov,1 D. Sánchez-Portal,2 A. K. Kazansky,2,3,4 and P. M. Echenique2,3,5 1ISMO, UMR 8214 CNRS-Université Paris-Sud, Bâtiment 351, Université Paris-Sud, 91405 Orsay Cedex, France 2Centro de Fı́sica de Materiales CFM Materials Physics Center MPC, Centro Mixto CSIC-UPV/EHU, 20018 San Sebastián/Donostia, Spain 3Donostia International Physics Center (DIPC), Paseo de Manuel Lardizabal 4, 2001...
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Synopsis In a recent attosecond photoelectron spectroscopy experiment from a metal surface [A. L. Cavalieri et al. Nature (London) 449, 1029 (2007)] a tail of unexplained low-energy electrons was measured. These electrons are shown to be due to electron-electron scatterings as the photoelectrons leave the metal. We develop a model for single scattering and a model based on cascade theory to des...
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ژورنال
عنوان ژورنال: Proceedings of the National Academy of Sciences
سال: 2017
ISSN: 0027-8424,1091-6490
DOI: 10.1073/pnas.1706466114