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arXiv · 1104.3263

Strong screening in the plum pudding model

A. D. Chepelianskii·F. Closa·E. Raphael·E. Trizac
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Abstract

We study a generalized Thomson problem that appears in several condensed matter settings: identical point-charge particles can penetrate inside a homogeneously charged sphere, with global electro-neutrality. The emphasis is on scaling laws at large Coulombic couplings, and deviations from mean-field behaviour, by a combination of Monte Carlo simulations and an analytical treatment within a quasi-localized charge approximation, which provides reliable predictions. We also uncover a local overcharging phenomenon driven by ionic correlations alone.

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A. D. Chepelianskii, F. Closa, E. Raphael, E. Trizac. 2011-04-16. Strong screening in the plum pudding model. https://doi.org/10.1209/0295-5075%2F94%2F68010

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