Electrocrystallization under magnetic fields: experiment and model

J.C. Mansur Filho, A.G. Silva, A.T.G. Carvalho and M.L. Martins

Physica A: Statistical Mechanics and its Applications, 2005, vol. 350, issue 2, 393-406

Abstract: We report some experimental results for quasi-two-dimensional electrocrystallization of copper under magnetic fields. Such results are theoretically investigated by large scale simulations of a DLA-like model in which random walkers can move along circular vortices enhanced by the Lorentz force. In addition, a sticking probability is used to take into account the complex reaction dynamics at the cathode surface. Our results indicate that the convective motion does not change the nature of the normal diffusive regime, but increases dramatically the diffusion constant by a factor of up to six. The characteristic features (morphology and scaling laws) of both random walks and growing electrodeposits under a perpendicular magnetic field are determined.

Keywords: Electrocrystallization; Magnetic effects; DLA aggregates; Random walks (search for similar items in EconPapers)
Date: 2005
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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:350:y:2005:i:2:p:393-406

DOI: 10.1016/j.physa.2004.11.009

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