Liu JM, I L
Department of Physics and Center for Complex System, National Central University, Chung-Li 32054, Taiwan, Republic of China.
Phys Rev E Stat Phys Plasmas Fluids Relat Interdiscip Topics. 2000 Oct;62(4 Pt B):5571-5. doi: 10.1103/physreve.62.5571.
Self-organized waves and the associated dust particle motion are studied experimentally in a low-pressure annular rf weakly magnetized dusty discharge system. Low-frequency drift waves with strong modulation on plasma density and dark space (sheath) width, traveling azimuthally with mode number m=1, are self-excited. Period-n and quasiperiodic states are also observed at higher rf power. Dust particles in the liquid state show collective elliptical cyclic motion in the low-frequency ionization-drift wave but respond only weakly to waves with frequencies above 50 Hz. When dust is added to a dust-free magnetized discharge in which there exists an ionization drift wave at 20 KHz, the wave amplitude is reduced and the frequency is down shifted.
在低压环形射频弱磁化尘埃放电系统中，对自组织波和相关尘埃颗粒运动进行了实验研究。自激发产生了低频漂移波，其在等离子体密度和暗空间（鞘层）宽度上具有强烈调制，以模式数m = 1沿方位角传播。在较高射频功率下还观察到了周期 - n和准周期状态。液态尘埃颗粒在低频电离漂移波中呈现集体椭圆循环运动，但对频率高于50Hz的波响应较弱。当将尘埃添加到存在20KHz电离漂移波的无尘埃磁化放电中时，波幅减小且频率下移。
