Structural properties of screened Coulomb balls

被引：128
作者：
Bonitz, M
Block, D
Arp, O
Golubnychiy, V
Baumgartner, H
Ludwig, P
Piel, A
Filinov, A
机构：
[1] Univ Kiel, ITAP, D-24098 Kiel, Germany
[2] Univ Kiel, IEAP, D-24098 Kiel, Germany
来源：
PHYSICAL REVIEW LETTERS | 2006年 / 96卷 / 07期
关键词：
D O I：
10.1103/PhysRevLett.96.075001
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Small three-dimensional strongly coupled charged particles in a spherical confinement potential arrange themselves in a nested shell structure. By means of experiments, computer simulations, and theoretical analysis, the sensitivity of their structural properties to the type of interparticle forces is explored. While the normalized shell radii are found to be independent of shielding, the shell occupation numbers are sensitive to screening and are quantitatively explained by an isotropic Yukawa model.
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页数：4
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