Publication

Aggregation of Fractal and Dendritic Ag Clusters on a Pt(111) Surface

Klaus Kern, Harald Brune
1995
Journal Articles

Abstract

We have used variable-temperature scanning tunneling microscopy to study the aggregation of two-dimensional Ag clusters on Pt(111). A transition from randomly ramified to dendritic fractal growth is observed in the diffusion-limited regime. Atomic-scale observations have identified the anisotropy of edge diffusion as microscopic origin of this crossover. Dependent on the deposition flux, this anisotropy is either amplified to the macroscopic-cluster shape and trigonal dendrites result, or it is degenerated and randomly ramified fractals occur. Our study elucidates the close relation between fractal and dendritic pattern formation in diffusion-limited aggregation on a two-dimensional lattice.

Official source

https://infoscience.epfl.ch/entities/publication/5ec3a6e0-238a-425b-8bde-dfa6758955df

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Klaus Kern, Harald Brune
1995
Journal Articles

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/5ec3a6e0-238a-425b-8bde-dfa6758955df

About this result

Related concepts (30)

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