Dust charging and levitating in a sheath of plasma containing energetic particles*

Project supported by the National Natural Science Foundation of China (Grant No. 11475223), the National Magnetic Confinement Fusion Science Program of China (Grant No. 2015GB101003), and the JSPS-NRF-NSFC A3 Foresight Program in the field of Plasma Physics (Grant Nos. 11261140328 and 2012K2A2A6000443).

Ou Jing1, 2, †, Zhao Xiao-Yun1, 3, Lin Bin-Bin1
       

(color online) Spatial profiles of the normalized dust surface potentials in the sheaths with (a) different energetic electron energies, (b) different energetic electron concentrations, and (c) different ratios of thermal ion temperature and electron temperature, respectively.