Author/Authors :
Hontinfinde، نويسنده , , F. and Videcoq، نويسنده , , A. and Montalenti، نويسنده , , F. and Ferrando، نويسنده , , R.، نويسنده ,
Abstract :
We show by Kinetic Monte Carlo simulations that the leapfrog diffusion mechanism leads to a selective faceting and to a non-monotonic behavior of the roughness during the epitaxial growth of missing-row (1 1 0) surfaces. At intermediate temperatures, (3 3 1) and (1 1 1) nanofacets are formed in equal proportions, while at high temperatures the surface presents almost only (1 1 1) facets. An analytical formula for the onset temperature of the selective faceting is derived.
