Diffraction of swift N atoms from Ag(111) surfaces.

M.S. GRAVIELLE; G.A. BOCAN; R. DÍEZ MUIÑO

Gatlinburg

Workshop; 18th International Workshop on Inelastic Ion-Surface Collisions (IISC).; 2010

Committee of the International Workshop on Inelastic Ion-Surface Collisions.

Diffraction from crystal surfaces produced by grazing scattering of atoms in the keV energy range is nowadays attracting considerable attention. The first experimental evidences of this effect were reported for insulator surfaces  for which the presence of a band gap strongly suppresses inelastic electronic processes, favoring the conservation of quantum coherence. However, this diffraction effect has recently been observed at metallic materials  as well, although electron excitations weresupposed to smudge interference signatures for these surfaces. The aim of this work is to study the atomic diffraction from metal surfaces by considering keV nitrogen atoms impinging grazingly on Ag(111) .