Hostname: page-component-745bb68f8f-grxwn Total loading time: 0 Render date: 2025-01-27T03:10:45.068Z Has data issue: false hasContentIssue false
  • English
  • Français

Computer Simulation of Nucleation on Patterned Surfaces

Published online by Cambridge University Press:  10 February 2011

A. Kuronen ,
L. Nurminen  and
K. Kaski
A. Kuronen
Affiliation:
Helsinki University of Technology, Laboratory of Computational Engineering, P.O.Box 9400, FIN-02015 HUT, FINLAND
L. Nurminen
Affiliation:
Helsinki University of Technology, Laboratory of Computational Engineering, P.O.Box 9400, FIN-02015 HUT, FINLAND
K. Kaski
Affiliation:
Helsinki University of Technology, Laboratory of Computational Engineering, P.O.Box 9400, FIN-02015 HUT, FINLAND
Get access

Abstract

We have studied qualitatively the effect of patterned substrate surface on adatom nucleation using Kinetic Monte Carlo simulations and solid-on-solid model. The inhomogeneity in the activation energies of adatom diffusion was incorporated into the simulations using two models: a) periodic variation of the adatom–substrate interaction energy as a function of the adatom lateral position and b) adding a direction dependent and periodically varying diffusion barrier energy to the adatom diffusion activation energy. The effect of the patterned surface was clearly manifested as a confinement of nucleated islands and, consequently, narrowing the island size distribution. The effect was strong in a narrow temperature range.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 584 , 1999 , 239
Copyright
Copyright © Materials Research Society 2000

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

1.Bimberg, D., Grundmann, M., and Ledentsov, N., Quantum Dor Heterostructures (John Wiley & Sons, Chichester, 1999).Google Scholar
2.Kegel, I., Metzger, T. H., and Peisl, J., Phys. Rev. B 60, 2516 (1999).Google Scholar
3.Tersoff, J., Teichert, C., and Lagally, M. G., Phys. Rev. Lett. 76, 1675 (1996).Google Scholar
4.Brune, H., Surface Science Reports 31, 121 (1998).Google Scholar
5.Brune, H., Giovannini, M., Bromann, K., and Kern, K., Nature 394, 451 (1998).Google Scholar
6.Bortz, A. B., Kalos, M. H., and Lebowitz, J. L., J. Comput. Phys. 17, 10 (1975).Google Scholar
7.Šmilauer, P. and Vvedensky, D., Phys. Rev. B 52, 14263 (1995).Google Scholar
8.Šmilauer, P., Wilby, M., and Vvedensky, D., Phys. Rev. B 47, 4119 (1993).Google Scholar