Wave spectra in solid and liquid complex (dusty) plasmas

被引：83
|
作者：
Nunomura, S [1 ]
Zhdanov, S [1 ]
Samsonov, D [1 ]
Morfill, G [1 ]
机构：
[1] Max Planck Inst Extraterr Phys, CIPS, D-85740 Garching, Germany
来源：
PHYSICAL REVIEW LETTERS | 2005年 / 94卷 / 04期
关键词：
D O I：
10.1103/PhysRevLett.94.045001
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Spectra of longitudinal and transverse waves were obtained experimentally in liquid and solid two-dimensional complex (dusty) plasmas at different kinetic temperatures. As the temperature increased and the phase state of the plasma changed from solid to liquid, the phonon spectra of both longitudinal and transverse modes broadened (especially at high wave numbers), indicating increased damping. The transverse mode disappeared and a thermal (compressional) mode appeared.
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页数：4
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