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.
Hontinfinde, F., Videcoq, A., Montalenti, F., Ferrando, R. (2004). Leapfrog-induced selective faceting in the growth of missing-row (110) surfaces. CHEMICAL PHYSICS LETTERS, 398(1-3), 50-55 [10.1016/j.cplett.2004.09.008].
Leapfrog-induced selective faceting in the growth of missing-row (110) surfaces
MONTALENTI, FRANCESCO CIMBRO MATTIA;
2004
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.
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