One-dimensional vertical dust strings in a glass box.
One-dimensional vertical dust strings in a glass box.
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玻璃盒中的一维垂直灰尘串。
DOI：
10.1103/physreve.84.016411
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发表时间：
2011
期刊：
影响因子：
--
通讯作者：
A. Douglass
中科院分区：
文献类型：
--
作者：
J. Kong;T. Hyde;L. Matthews;K. Qiao;Zhuanhao Zhang;A. Douglass
研究了气体电子会议(GEC)参考电池下部电极顶部玻璃盒内形成的一维垂直粉尘串的振荡谱。描述了一种用于产生单个垂直粉尘串的机构。结果表明，尘埃粒子的振荡幅度、共振频率、阻尼系数和振荡相位分成两组。对于靠近下电极的尘埃颗粒，一组显示出低的阻尼系数、增大的振幅和减小的共振频率。另一组显示高的阻尼系数，但共振频率和振幅异常。在低振荡频率下，两组也由π相位差分开。讨论了导致这两组人行为差异的一个可能原因。
The oscillation spectrum of a one-dimensional vertical dust string formed inside a glass box on top of the lower electrode in a gaseous electronics conference (GEC) reference cell was studied. A mechanism for creating a single vertical dust string is described. It is shown that the oscillation amplitudes, resonance frequencies, damping coefficients, and oscillation phases of the dust particles separate into two distinct groups. One group exhibits low damping coefficients, increasing amplitudes, and decreasing resonance frequencies for dust particles closer to the lower electrode. The other group shows high damping coefficients but anomalous resonance frequencies and amplitudes. At low oscillation frequencies, the two groups are also separated by a π phase difference. One possible cause for the difference in behavior between the two groups is discussed.