Molecular-dynamics study of single-electron charging in semiconductor wires.

A molecular-dynamics technique is applied to single-electron charging effects in semiconductor wires, and the impact of strong electron-electron correlation on the conductance is investigated. Because of the relatively low electron density in semiconductors compared to a metal, the screening length is comparable to the sample size, which requires a treatment beyond the conventional Coulomb-blockade argument using macroscopic capacitance. Based on the molecular-dynamics method, most features of the periodic conductance oscillation in the double-barrier system are reproduced, and the feasibility of this technique in single-electron charging phenomena is demonstrated