Abstract:
We have determined by computer simulations, some structural properties of Ge clusters embedded in a Si crystalline host matrix for cluster sizes varying from \( \approx \) 0.5 to 1.5 nm. In order to describe inter-atomic forces we have chosen a Valence Force Field (VFF) semi-empirical potential. Next we have calculated the density of vibrational states by diagonalization of the dynamical matrix defined with the same potential. The influence of the volume/interface ratio of Ge on the vibrational properties is discussed.
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Received 10 December 1998 and Received in final form 7 April 1999
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Dalla Torre, J., Barriquand, N., Djafari Rouhani, M. et al. Ge clusters in Si matrix: structure and dynamics. Eur. Phys. J. B 12, 343–346 (1999). https://doi.org/10.1007/s100510051014
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DOI: https://doi.org/10.1007/s100510051014