Article (Scientific journals)
Rapid Coarsening of Ion Beam Ripple Patterns by Defect Annihilation
Hansen, Henri; Redinger, Alex; Messlinger, Sebastian et al.
2009In PHYSICAL REVIEW LETTERS, 102 (14)
Peer reviewed
 

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Abstract :
[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.
Disciplines :
Physics
Author, co-author :
Hansen, Henri
Redinger, Alex ;  University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > Physics and Materials Science Research Unit
Messlinger, Sebastian
Georgiana, Stoian
Krug, Joachim
Michely, Thomas
External co-authors :
yes
Language :
English
Title :
Rapid Coarsening of Ion Beam Ripple Patterns by Defect Annihilation
Publication date :
2009
Journal title :
PHYSICAL REVIEW LETTERS
ISSN :
0031-9007
Volume :
102
Issue :
14
Peer reviewed :
Peer reviewed
Focus Area :
Physics and Materials Science
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