Ge clusters in Si matrix: structure and dynamics - Archive ouverte HAL
Article Dans Une Revue The European Physical Journal B: Condensed Matter and Complex Systems Année : 1999

Ge clusters in Si matrix: structure and dynamics

Résumé

We have determined by computer simulations, some structural properties of Ge clusters embedded in a Si crystalline host matrix for cluster sizes varying from » 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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Dates et versions

hal-00148776 , version 1 (04-06-2007)

Identifiants

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J. Dalla Torre, N. Barriquand, Mehdi Djafari-Rouhani, Georges Landa. Ge clusters in Si matrix: structure and dynamics. The European Physical Journal B: Condensed Matter and Complex Systems, 1999, 12 (3), pp.343-346. ⟨10.1007/s100510051014⟩. ⟨hal-00148776⟩
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