Article ID Journal Published Year Pages File Type
9818426 Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms 2005 5 Pages PDF
Abstract
A model is presented which allows to incorporate low-energy electronic excitation into the molecular dynamics simulation of atomic collision cascades. The model treats the electronic energy loss experienced by all moving atoms as a source term in a diffusive description of the electronic excitation energy transport. In order to acknowledge (i) the large temperature gradients and (ii) the local lattice disorder induced by the projectile impact, the electronic heat diffusivity is allowed to vary as a function of space and time across the cascade volume.
Related Topics
Physical Sciences and Engineering Materials Science Surfaces, Coatings and Films
Authors
, , ,