naa a22 4500 510816819 CHVBK 20180411083511.0 cr unu---uuuuu 180411e20130601xx s 000 0 eng 10.1007/s11468-012-9397-6 doi (NATIONALLICENCE)springer-10.1007/s11468-012-9397-6 Politano A. Dipartimento di Fisica, Università degli Studi della Calabria, 87036, Rende, Cosenza, Italy aut Low-Energy Collective Electronic Mode at a Noble Metal Interface [Elektronische Daten] [A. Politano] A novel low-energy collective mode of electrons near the Fermi energy has been detected at 5meV for (9 × 9)-Ag/Cu(111) by high-resolution electron energy loss spectroscopy. This collective electronic excitation does not exist on the bare Cu substrate or on a silver monolayer deposited on Ni(111). It has been assigned to the excitation of the Friedel oscillations in the silver adlayer. Such finding is important for understanding dynamic electron screening at a metal/metal interface. In particular, this work provides the grounds for more accurate theoretical studies aimed at describing the surface loss function and low-energy collective electronic modes in Ag/Cu(111). Springer Science+Business Media, LLC, 2012 Electron energy loss spectroscopy nationallicence Silver nationallicence Copper nationallicence Screening nationallicence Collective electronic excitations nationallicence Plasmonics Springer US; http://www.springer-ny.com 8/2(2013-06-01), 357-360 1557-1955 8:2<357 2013 8 11468 https://doi.org/10.1007/s11468-012-9397-6 text/html Onlinezugriff via DOI 1 brief-communication jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11468-012-9397-6 text/html Onlinezugriff via DOI NATIONALLICENCE 100 1- Politano A. Dipartimento di Fisica, Università degli Studi della Calabria, 87036, Rende, Cosenza, Italy aut NATIONALLICENCE 773 0- Plasmonics Springer US; http://www.springer-ny.com 8/2(2013-06-01), 357-360 1557-1955 8:2<357 2013 8 11468 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer