CONICET | Buscador de Institutos y Recursos Humanos

In this work we review some recent research on the surface diffusion-mediated decay oftwo-dimensional nanostructures. These results include both a continuous, vectorial model and adiscrete kinetic Monte Carlo approach. Predictions from the standard linear continuous theoryof surface-diffusion-driven interface decay are contrasted with simulational results both fromkinetic and morphological points of view. In particular, we focused our attention onhigh-aspect-ratio nanostructures, where strong deviations from linear theory take place,including nonexponential amplitude decay and the emergence of several interestingnanostructures such as overhangs developing, nanoislands and nanovoids formation, loss ofconvexity, nanostructures-pinch off and nanostructures-break off, etc.