Directional motion of dust particles at different gear structures in a plasma
Dai Chao-Xing, Song Chao, Zhou Zhi-Xiang, Sun Wen-Tao, Guo Zhi-Qiang, Liu Fu-Cheng †, He Ya-Feng ‡
       

Distribution of the force on the dust particle at different angular positions in the saw channel derived from Fig. 4. M indicates the stable stationary position of dust particle. Black arrow line indicates the motion direction of dust particles. Gas pressure: 40 Pa, RF power: 25 W.