Publications Repository - Helmholtz-Zentrum Dresden-Rossendorf
1 PublicationAtomistic simulations of elastic and plastic properties in amorphous silicon
Talati, M.; Albaret, T.; Tanguy, A.
Abstract
We present here potential-dependent mechanical properties of amorphous silicon studied through molecular dynamics (MD) at low temperature. On average, the localization of elementary plastic events and the co-ordination defect sites appears to be correlated. For Tersoff potential and SW potential the plastic events centered on defect sites prefer 5-fold defect sites, while for modified Stillinger-Weber potential such plastic events choose 3-fold defect sites. We also analyze the non-affine displacement field in amorphous silicon obtained for different shear regime. The non-affine displacement field localizes when plastic events occur and shows elementary shear band formation at higher shear strains.
- EPL - Europhysics Letters 86(2009), 66005
Permalink: https://www.hzdr.de/publications/Publ-13589