Physics – Classical Physics
Scientific paper
2012-03-15
Journal of Electrostatics 69(5) 414-418 (2011)
Physics
Classical Physics
1 figure, 2 parts, eps
Scientific paper
10.1016/j.elstat.2011.06.006
Studies on nanoscale materials merit careful development of an electrostatics model concerning discrete point charges within dielectrics. The discrete charge dielectric model treats three unique interaction types derived from an external source: Coulomb repulsion among point charges, direct polarization between point charges and their associated surface charge elements, and indirect polarization between point charges and surface charge elements formed by other point charges. The model yields the potential energy, U(N), stored in a general $N$ point charge system differing from conventional integral formulations, $1/2\int{\bm E}\cdot{\bm D}dV$ and $1/2\int\rho\Phi dV$, in a manner significant to the treatment of few electron systems.
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