79 citations · 252 across the 7 of their papers we have counts for
7 papers
The structural stability of tungsten nanoparticles
Laurent Pizzagalli, Sandrine Brochard, Julien Godet +1
Motivated by contradicting reports in the literature, we have investigated the structural stability of tungsten nanoparticles using density functional theory calculations. The comp…
Glissile dislocations with transient cores in silicon
Laurent Pizzagalli, Julien Godet, Sandrine Brochard
We report an unexpected characteristic of dislocation cores in silicon. Using first-principles calculations, we show that all the stable core configurations for a non-dissociated 6…
Effects of temperature and surface step on the incipient plasticity in strained aluminium studied by atomistic simulations
Pierre Hirel, Sandrine Brochard, Laurent Pizzagalli +1
Atomistic simulations using an EAM potential are carried out to investigate the first stages of plasticity in aluminum slabs, in particular the effect of both temperature and step…
Theoretical study of dislocation nucleation from simple surface defects in semiconductors
Julien Godet, Laurent Pizzagalli, Sandrine Brochard +1
Large-scale atomistic calculations, using empirical potentials for modeling semiconductors, have been performed on a stressed system with linear surface defects like steps. Althoug…
Comparison between classical potentials and ab initio for silicon under large shear
Julien Godet, Laurent Pizzagalli, Sandrine Brochard +1
The homogeneous shear of the {111} planes along the <110> direction of bulk silicon has been investigated using ab initio techniques, to better understand the strain properties of…
Surface step effects on Si (100) under uniaxial tensile stress, by atomistic calculations
Julien Godet, Laurent Pizzagalli, Sandrine Brochard +1
This paper reports a study of the influence of the step at a silicon surface under an uniaxial tensile stress, using an empirical potential. Our aim was to find conditions leading…