Abstract
A physical criterion is proposed for a change in the equilibrium shape of elastically strained germanium nanoclusters growing on a silicon substrate under the conditions of molecular beam expitaxy. The critical size of pyramidal Ge clusters is estimated and compared to the available experimental data.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
N. N. Ledentsov, V. M. Ustinov, V. A. Shchukin, et al., Fiz. Tekh. Poluprovodn. (St. Petersburg) 32, 385 (1998) [Semiconductors 32, 343 (1998)].
G. Medeiros-Ribeiro, A. M. Bratkovski, T. I. Kamins, et al., Science 279, 353 (1998).
R. E. Rudd, G. A. D. Briggs, A. P. Sutton, et al., Phys. Rev. Lett. 90, 146 (2003).
F. M. Ross, J. Tersoff, and R. M. Tromp, Phys. Rev. Lett. 80, 984 (1998).
G. Costantini, A. Rastelli, C. Manzano, et al., Appl. Phys. Lett. 85, 5673 (2004).
D. B. Migas, S. Cereda, F. Montalenti, and L. Miglio, Surf. Sci. 556, 121 (2004).
Yu. V. Trushin, Radiation Processes in Multicomponent Materials: Theory and Computer Simulation (Ioffe Physicotechnical Institute, St. Petersburg, 2002) [in Russian].
A. V. Osipov, F. Schmitt, S. A. Kukushkin, and P. Hess, Appl. Surf. Sci. 188, 156 (2002).
C. Ratsch and A. Zangwill, Surf. Sci. 293, 123 (1993).
H. T. Johnson and L. B. Freund, J. Appl. Phys. 81, 6081 (1997).
Author information
Authors and Affiliations
Corresponding author
Additional information
Original Russian Text © K.L. Safonov, Yu.V. Trushin, 2007, published in Pis’ma v Zhurnal Tekhnicheskoĭ Fiziki, 2007, Vol. 33, No. 23, pp. 7–12.
Rights and permissions
About this article
Cite this article
Safonov, K.L., Trushin, Y.V. A criterion for the transition from pyramidal to dome shape of coherent germanium nanoclusters growing on silicon. Tech. Phys. Lett. 33, 990–992 (2007). https://doi.org/10.1134/S1063785007120024
Received:
Issue Date:
DOI: https://doi.org/10.1134/S1063785007120024