Nonlinear resonances of particles in a dusty plasma sheath

被引：42

作者：

Zafiu, C ^{[1
]}

Melzer, A ^{[1
]}

Piel, A ^{[1
]}

机构：

[1] Univ Kiel, Inst Expt & Angew Phys, D-24098 Kiel, Germany

来源：

PHYSICAL REVIEW E | 2001年 / 63卷 / 06期

关键词：

D O I：

10.1103/PhysRevE.63.066403

中图分类号：

O35 [流体力学]; O53 [等离子体物理学];

学科分类号：

070204 ; 080103 ; 080704 ;

摘要：

Vertical oscillations microparticles trapped in the sheath of a capacitive rf discharge have been excited showing a strongly nonlinear resonance. The nonlinear oscillations are analyzed in terms of an anharmonic fourth-order potential energy curve. It is demonstrated that the observed nonlinearities can be related to a position dependent charge of the microspheres, whereas the electric field is found to be as nearly linearly increasing. The experimental results on the position dependent charging and electric field structure are compared to a numerical model.

引用

页数：8

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