Reference : Rapid Coarsening of Ion Beam Ripple Patterns by Defect Annihilation
Scientific journals : Article
Physical, chemical, mathematical & earth Sciences : Physics
Physics and Materials Science
http://hdl.handle.net/10993/32479
Rapid Coarsening of Ion Beam Ripple Patterns by Defect Annihilation
English
Hansen, Henri [> >]
Redinger, Alex mailto [University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > Physics and Materials Science Research Unit]
Messlinger, Sebastian [> >]
Georgiana, Stoian [> >]
Krug, Joachim [> >]
Michely, Thomas [> >]
2009
PHYSICAL REVIEW LETTERS
102
14
Yes (verified by ORBilu)
International
0031-9007
[en] Ripple patterns formed on Pt(111) through grazing incidence ion beam erosion coarsen rapidly. At and below 450 K coarsening of the patterns is athermal and kinetic, unrelated to diffusion and surface free energy. Similar to the situation for sand dunes, coarsening takes place through annihilation reactions of mobile defects in the pattern. The defect velocity derived on the basis of a simple model agrees quantitatively with the velocity of monatomic steps illuminated by the ion beam.
http://hdl.handle.net/10993/32479
10.1103/PhysRevLett.102.146103

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