The stability of the FCC structure was compared with that of the liquid structure in the charged colloidal dispersion by molecular dynamics simulations. The effective potential of Sogami-Ise theory was assumed. The total number of molecules in the basic cell was 2592. The shape of the basic cell was rectangular parallelepiped. The cut-off distance was the half of the short cell length. Two types of the initial configuration were assumed. Solid-liquid-solid structure was the first one. The second one was liquid-solid-liquid structure. The equilibrium structure did not depend on the initial structure. In the case of the low volume fraction (3%), the FCC structure was more stable than the liquid structure for a typical charge distribution at room temperature. The melting point was estimated as about 880K.

208 情報メディア教育研究センター ＞ 紀要 ＞ 法政大学情報メディア教育研究センター研究報告 ＞ 32