Screening and attraction of dust particles in plasmas - art. no. 075004

被引：31
作者：
Castaldo, C
de Angelis, U
Tsytovich, VN
机构：
[1] EURATOM, ENEA, CR ENEA Frascati, I-00044 Frascati, Italy
[2] Univ Naples, Dept Phys Sci, Naples, Italy
[3] Ist Nazl Fis Nucl, I-80125 Naples, Italy
[4] Russian Acad Sci, Inst Gen Phys, Moscow, Russia
来源：
PHYSICAL REVIEW LETTERS | 2006年 / 96卷 / 07期
关键词：
D O I：
10.1103/PhysRevLett.96.075004
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
The potential around a dust particle in a plasma is found using the collisional hydrodynamic equations of dusty plasmas, taking into account ion-dust and ion-neutral collisions and considering the plasma source proportional to the dust density. The linear screening is strongly influenced by the collisions and can substantially differ from Debye screening. Attraction of negatively charged dust particles can occur due to overscreening by the ion fluxes in the presence of friction forces.
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页码：1 / 4
页数：4
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