Article ID Journal Published Year Pages File Type
1683118 Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms 2011 4 Pages PDF
Abstract

Negative ion fractions, projectile energy loss, and the emission of electrons is studied for grazing scattering of hydrogen and helium atoms/ions from a clean and oxidized NiAl(1 1 0) surface. Making use of translation energy spectroscopy and the coincident detection of the number of emitted electrons we have studied the electronic interaction mechanisms for the change from a clean metal target to an insulator surface via the preparation of a well defined ultrathin alumina film on top of the metal substrate. We find that already for a monolayer thick oxide film the characteristic different features of electronic processes for the surface of an insulator crystal are present.

Related Topics
Physical Sciences and Engineering Materials Science Surfaces, Coatings and Films
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