In this paper we have investigated, through computer simulations, dislocation nucleation and dislocation dynamics in a heterostructure system with the lattice-mismatch interface, i.e. a system with internal strain. In particular, we have studied the dependence of the nucleation thresholds on the basic parameters of the crystals, such as the amount of mismatch and the system temperature. These studies have been carried out by using the simulation code with a graphical user interface developed at our laboratory. This on-line simulation system produces a real time interactive visualization of the 3-D Molecular Dynamics model. Furthermore, it detects the presence of dislocations and tracks them by an algorithm based on potential energy mapping.
@article{arxiv.1804.07105,
title = {Nucleation and dynamics of dislocations in mismatched heterostructures},
author = {Marco Patriarca and Antti Kuronen and Kimmo Kaski},
journal= {arXiv preprint arXiv:1804.07105},
year = {2018}
}
Comments
Presented at the 2001 MRS Fall Meeting, Boston, MA, November 26-29, 2001. 8 pages, 5 figures, links to online simulations videos