Fractal dimension of disordered submonolayers: Determination from He scattering data

D. A. Hamburger*, A. T. Yinnon, R. B. Gerber

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

We propose a novel method to measure the fractal dimension of a submonolayer metal adatom system grown under conditions of limited diffusivity on a surface. The method is based on measuring the specular peak attenuation of He atoms scattered from the surface, as a function of incidence energy. The (Minkowski) fractal dimension thus obtained is that of contours of constant electron density of the adatom system. Simulation results are presented, based on experimental data. A coverage dependent fractal dimension is found from a two-decade wide scaling regime.

Original languageEnglish
Pages (from-to)23-29
Number of pages7
JournalChemical Physics Letters
Volume253
Issue number3-4
DOIs
StatePublished - 3 May 1996

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