Control of ion drag in a dusty plasma

被引：0
作者：
E. S. Dzlieva
M. A. Ermolenko
V. Yu. Karasev
S. I. Pavlov
L. A. Novikov
S. A. Maiorov
机构：
[1] St. Petersburg State University,Fock Institute of Physics
[2] Russian Academy of Sciences,Prokhorov General Physics Institute
来源：
JETP Letters | 2015年 / 100卷
关键词：
Angular Velocity; Xenon; Dust Particle; JETP Letter; Dusty Plasma;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
A method of the control of the ion drag force acting on a dust particle in a complex plasma by choosing the composition of the gas mixture of a discharge has been proposed and experimentally implemented. The addition of a heavier additive with a lower ionization potential to the light buffer gas changes the ion composition and velocity of the ion flow. As a result, the ion drag force changes significantly. The experiments have been performed with the discharge in a helium-xenon mixture in a magnetic field. The measured angular rotation velocity of the dusty structure is in agreement with the numerical estimate of the ion drag force varying (increasing) in the presence of small (<5%) xenon additive. The proposed method can be used to create plasma crystals with new properties.
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页码：703 / 707
页数：4
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