AVS 49th International Symposium
    Surface Science Tuesday Sessions
       Session SS2-TuM

Paper SS2-TuM11
Azimuth Dependent Nanogroove Creation by Grazing Ar@super +@ Bombardment on Cu(001)

Tuesday, November 5, 2002, 11:40 am, Room C-110

Session: Diffusion & Growth on Metal Surfaces
Presenter: H. Wormeester, University of Twente, The Netherlands
Authors: H. Wormeester, University of Twente, The Netherlands
M.M. Ovsyanko, University of Twente, The Netherlands
A.A. Mewe, University of Twente, The Netherlands
G. Stoian, University of Twente, The Netherlands
B. Poelsema, University of Twente, The Netherlands
Correspondent: Click to Email
Grazing incidence 800 eV Ar@super +@ sputtering on a Cu(001) surface leads to the formation of nanogrooves in which only 3 layers are involved.@footnote 1@ We found with high resolution LEED (SPA LEED) that the distance between the nanogrooves L depends on the azimuthal orientation of the incident ions, with a larger distance L for incidence along <100> than <110>. Extrapolation to zero time shows that initially no azimuthal dependence of L is noticable. The time dependent behaviour, however, shows a much larger separation speed for [100] oriented nanogrooves. The creation and azimuth dependent development of these nanogrooves will be discussed. @FootnoteText@ @footnote 1@Phys. Rev. Lett. 86, 4608 (2001).