Grazing Incidence Diffraction of keV Helium Atoms on a Ag(110) Surface

N. Bundaleski, H. Khemliche, P. Soulisse, and P. Roncin
Phys. Rev. Lett. 101, 177601 – Published 24 October 2008

Abstract

Diffraction of fast atoms at grazing incidence has been recently demonstrated on the surface of alkali halides and wide band gap semiconductors, opening applications for the online monitoring of surface processes such as growth of ultrathin layers. This Letter reports energy resolved diffraction of helium on Ag(110) metal surface showing that a band gap is not mandatory to restrict the decoherence due to electron-hole pair excitations by the keV projectile. Measurement of the energy loss, which is in the eV range, sheds light on the scattering process.

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  • Received 8 August 2008

DOI:https://doi.org/10.1103/PhysRevLett.101.177601

©2008 American Physical Society

Authors & Affiliations

N. Bundaleski, H. Khemliche, P. Soulisse, and P. Roncin

  • CNRS, Laboratoire des Collisions Atomiques et Moleculaires, UMR 8625, Universite Paris-Sud, Orsay, F-91405, France

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Issue

Vol. 101, Iss. 17 — 24 October 2008

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