Surface strain effects on adatom kinetics and self-assembly

M. I. Larsson, Renat F Sabirianov, K. Cho, B. M. Clemens

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

Strain-assisted self-assembly of nanostructures is investigated by means of kinetic Monte Carlo (KMC) simulations of suitable model systems. We show that the local strain dependence of the binding site and saddle-point energies with slopes CB and CSP, respectively, is critical for the adatom surface diffusion. The driving forces of surface patterning are identified. If CB≠0 and CSP=0, the diffusion is thermodynamically driven and if CB=0 and CSP≠0, it is kinetically driven. By varying these slopes the direction of the diffusion current can be controlled. The nanopatterning is quantified by evaluating the corresponding power-density spectra.

Original languageEnglish (US)
JournalSurface Science
Volume536
Issue number1-3
DOIs
StatePublished - Jun 20 2003

Fingerprint

Adatoms
Self assembly
adatoms
self assembly
slopes
Kinetics
Surface diffusion
kinetics
Binding sites
saddle points
surface diffusion
radiant flux density
Nanostructures
Binding Sites
simulation
energy
Monte Carlo simulation
Direction compound

Keywords

  • Adatoms
  • Monte Carlo simulations
  • Self-assembly
  • Surface diffusion

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films
  • Materials Chemistry

Cite this

Surface strain effects on adatom kinetics and self-assembly. / Larsson, M. I.; Sabirianov, Renat F; Cho, K.; Clemens, B. M.

In: Surface Science, Vol. 536, No. 1-3, 20.06.2003.

Research output: Contribution to journalArticle

Larsson, M. I. ; Sabirianov, Renat F ; Cho, K. ; Clemens, B. M. / Surface strain effects on adatom kinetics and self-assembly. In: Surface Science. 2003 ; Vol. 536, No. 1-3.
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