Article (Scientific journals)
Spiral growth and step edge barriers
Redinger, Alex; Ricken, Oliver; Kuhn, Philipp et al.
2008In PHYSICAL REVIEW LETTERS, 100 (3)
Peer reviewed
 

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Abstract :
[en] The growth of spiral mounds containing a screw dislocation is compared to the growth of wedding cakes by two-dimensional nucleation. Using phase field simulations and homoepitaxial growth experiments on the Pt(111) surface we show that both structures attain the same large scale shape when a significant step-edge barrier suppresses interlayer transport. The higher vertical growth rate of the spiral mounds on Pt(111) reflects the different incorporation mechanisms for atoms in the top region and can be formally represented by an enhanced apparent step-edge barrier.
Disciplines :
Physics
Author, co-author :
Redinger, Alex ;  University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > Physics and Materials Science Research Unit
Ricken, Oliver
Kuhn, Philipp
Raetz, Andreas
Voigt, Axel
Krug, Joachim
Michely, Thomas
External co-authors :
yes
Language :
English
Title :
Spiral growth and step edge barriers
Publication date :
2008
Journal title :
PHYSICAL REVIEW LETTERS
ISSN :
0031-9007
Volume :
100
Issue :
3
Peer reviewed :
Peer reviewed
Focus Area :
Physics and Materials Science
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