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Article
Nature 309, 225 - 229 (17 May 1984); doi:10.1038/309225a0

Fractal growth of copper electrodeposits

R. M. Brady & R. C. Ball

Cavendish Laboratory, University of Cambridge, Madingley Road, Cambridge CB3 0HE, UK

Black dendritic growths of copper were electrodeposited in steady-state diffusion-limited conditions onto an initially point-like cathode. Their spatial extent R was inferred from the increased current and their mass M from the total charge transferred. Fractal behaviour MR D was observed with D = 2.43 ±0.03, in good agreement with computer simulations of diffusion-limited aggregation.

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