Formation and dissociation of dust molecules in dusty plasma

doi:10.1088/1674-1056/25/9/095202

Abstract

Dust molecules are observed in a dusty plasma experiment. By using measurements with high spatial resolution, the formation and dissociation of the dust molecules are studied. The ion cloud in the wake of an upper dust grain attracts the lower dust grain nearby. When the interparticle distance between the upper dust grain and the lower one is less than a critical value, the two dust grains would form a dust molecule. The upper dust grain always leads the lower one as they travel. When the interparticle distance between them is larger than the critical value, the dust molecule would dissociate.

Keywords: dust plasma dust molecule

Received: 12 April 2016
Revised: 04 May 2016
Accepted manuscript online:

PACS:	52.27.Lw	(Dusty or complex plasmas; plasma crystals)
	52.27.Gr	(Strongly-coupled plasmas)

Fund:

Project supported by the National Natural Science Foundation of China (Grant Nos. 11205044 and 11405042), the Natural Science Foundation of Hebei Province, China (Grant Nos. A2011201006 and A2012201015), the Research Foundation of Education Bureau of Hebei Province, China (Grant No. Y2012009), the Program for Young Principal Investigators of Hebei Province, China, and the Midwest Universities Comprehensive Strength Promotion Project, China.

Corresponding Authors: Yafeng He
E-mail: heyf@hbu.edu.cn

Cite this article:

Jia Yan(闫佳), Fan Feng(冯帆), Fucheng Liu(刘富成), Lifang Dong(董丽芳), Yafeng He(贺亚峰) Formation and dissociation of dust molecules in dusty plasma 2016 Chin. Phys. B 25 095202

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Formation and dissociation of dust molecules in dusty plasma

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