Faceting and Branching in 2D Crystal Growth

G. Tegze, G. Tóth, László Gránásy

Research output: Contribution to journalArticle

47 Citations (Scopus)

Abstract

Using atomic scale time-dependent density functional calculations we confirm that both diffusion-controlled and diffusionless crystallization modes exist in simple 2D systems. We provide theoretical evidence that a faceted to nonfaceted transition is coupled to these crystallization modes, and faceting is governed by the local supersaturation at the fluid-crystalline interface. We also show that competing modes of crystallization have a major influence on mesopattern formation. Irregularly branched and porous structures are emerging at the crossover of the crystallization modes. The proposed branching mechanism differs essentially from dendritic fingering driven by diffusive instability.

Original languageEnglish
Article number195502
JournalPhysical Review Letters
Volume106
Issue number19
DOIs
Publication statusPublished - May 11 2011

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crystal growth
crystallization
supersaturation
emerging
crossovers
fluids

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Faceting and Branching in 2D Crystal Growth. / Tegze, G.; Tóth, G.; Gránásy, László.

In: Physical Review Letters, Vol. 106, No. 19, 195502, 11.05.2011.

Research output: Contribution to journalArticle

Tegze, G. ; Tóth, G. ; Gránásy, László. / Faceting and Branching in 2D Crystal Growth. In: Physical Review Letters. 2011 ; Vol. 106, No. 19.
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