GRAZING INCIDENCE FAST ATOM DIFFRACTION FOR HELLIUM ATOMS IMPINGING ON A Ag(110) SURFACE

C.A. RÍOS RUBIANO; G.A. BOCAN; M.S. GRAVIELLE

Frauenchiemsee

Workshop; 19th International Workshop on Inelastic Ion-Surface Collisions (IISC-19); 2012

<!-- @page { margin: 0.79in } P { margin-right: 0.03in; margin-bottom: 0in; direction: ltr; color: #000000; text-align: justify; widows: 2; orphans: 2 } P.western { font-family: "Times New Roman", serif; font-size: 9pt; so-language: en-US } P.cjk { font-family: "Times New Roman", serif; font-size: 9pt } P.ctl { font-family: "Times New Roman", serif; font-size: 10pt; so-language: ar-SA } A:link { color: #0000ff } --> Diffraction of swift atoms due to grazing scattering from crystal surfaces has displayed an exceptional sensitivity to the projectile-surface interaction, which opens the way for the development of a powerful surface analysis technique. Even though the first experimental evidences of this phenomenon were reported at insulator surfaces, which provided a favorable scenery to prevent quantum decoherence, soon afterwards the effect was observed at metallic materials as well [1,2]. The aim of this work is to investigate the diffraction patterns produced by fast He atoms impinging grazingly on a Ag(110) surface. Since this collision system corresponds to the first atom-metal surface system experimentally studied with fast atom diffraction [1], it provides a useful benchmark to test both the theoretical method and the surface potential model. <!-- @page { margin: 0.79in } P { margin-right: 0.03in; margin-bottom: 0in; direction: ltr; color: #000000; text-align: justify; widows: 2; orphans: 2 } P.western { font-family: "Times New Roman", serif; font-size: 9pt; so-language: en-US } P.cjk { font-family: "Times New Roman", serif; font-size: 9pt } P.ctl { font-family: "Times New Roman", serif; font-size: 10pt; so-language: ar-SA } A:link { color: #0000ff } -->