Journal Article

PreJuSER-57738

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Superior regularity in erosion patterns by planar subsurface channeling

Redinger, A. ; Hansen, H. ; Linke, U.FZJ* ; Rosandi, Y. ; Urbassek, H. M. ; Michely, T.

2006
APS College Park, Md.

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Please use a persistent id in citations: http://hdl.handle.net/2128/7715  doi:10.1103/PhysRevLett.96.106103

Abstract: The onset of pattern formation through exposure of Pt(111) with 5 keV Ar+ ions at grazing incidence has been studied at 550 K by scanning tunneling microscopy and is supplemented by molecular-dynamics simulations of single ion impacts. A consistent description of pattern formation in terms of atomic scale mechanisms is given. Most surprisingly, pattern formation depends crucially on the angle of incidence of the ions. As soon as this angle allows subsurface channeling of the ions, pattern regularity and alignment with respect to the ion beam greatly improves. These effects are traced back to the positionally aligned formation of vacancy islands through the damage created by the ions at dechanneling locations.

Keyword(s): J

Note: Record converted from VDB: 12.11.2012

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Research Program(s):

1. Grundlagen für zukünftige Informationstechnologien (P42)

Appears in the scientific report 2006
Notes: Nachtrag

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