The interaction between misfit dislocations at the metal/MgO interfaces: Atomistic study and analysis

Misfit dislocation is one of the most important linear defects at the interface. Its structure and mechanics have attracted much attention. However, the dislocation dynamics for some interfaces are not very clear. We study the dislocation–dislocation interaction at the metal/MgO interfaces. The interaction is proved to be repulsive, and is obtained by molecular mechanics. The dislocation mass and dislocation wave are investigated, for which the dislocation wave speed is calculated by using the dislocation network model. A set of interesting results is obtained.