1996/11/30 by I. Furman, Itay Furman, Ofer Biham +1 · 26 citations
Earth and Planetary Sciences · Engineering · Materials Science · Mathematics · Physics and Astronomy · #Condensed matter physics #Deposition (geology) #Electron and X-Ray Spectroscopy Techniques #Epitaxy #Exponent #Fractal #Geology #Geometry #Geomorphology #Growth rate #Ion-surface interactions and analysis #Materials science #Mathematics #Molecular beam epitaxy #Morphology (biology) #Nanotechnology #Physics #Scaling #cond-mat.mtrl-sci #nanoparticles nucleation surface interactions
paper · pdf · doi:10.1103/physrevb.55.7917
published in Physical review. B, Condensed matter 55(12), 7917-7926 (American Physical Society) · 25 pages of text, RevTeX, additional 8 figures in 10 PS files. Replaced version include some minor changes, notation, etc. To be published in: Phys. Rev B, Vol. 55 (1997)
arxiv created 1997/02/20 · openalex publication_date 1997/03/15 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
The effects of mobility of small islands on island growth in molecular-beam epitaxy are studied. It is shown that mobility of small islands affects both the scaling and morphology of islands during growth. Three microscopic models are considered, in which the critical island sizes are i*=1,f2, and 3 (such that islands of size s\ensuremath\leqslanti* are mobile, while islands of size s\ensuremath\geqslanti*+1 are immobile). As i* increases, islands become more compact, while the exponent \ensuremathγ, which relates the island density to deposition rate, increases. The morphological changes are quantified by using fractal analysis. It is shown that the fractal dimensions are rather insensitive to changes in i*. However, the prefactors provide a quantitative measure of the changing morphologies.