修正的屏蔽库伦势下二维磁化尘埃等离子体的动力学性质

Dynamical Properties of Magnetized Dusty Plasmas with Modified Screened Coulomb Potential

用分子动力学模拟方法,研究了修正的屏蔽库伦势下二维磁化尘埃等离子体中的动力学性质.模拟计算结果表明,带电粒子的运动轨迹在修正前和修正后的屏蔽库伦势情况下有着明显不同.同时还得到在外加磁场情况下带电粒子在修正前后的两种结构,讨论了粒子大小对势的影响.

Molecular dynamical simulation method is used to investigate the dynamical properties of two dimensional magnetized dusty plasmas. It is shown that the charged particles move at a quite different trajectory, respectively, in Yukawa potential and modified screened Coulomb potential. Depending on the external magnetic field, two types of charged particles configuration are obtained. The effects of particles size on the potentials are discussed.