Hexatic undulations in curved geometries
Hexatic undulations in curved geometries
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DOI：
10.1103/physreve.67.031502
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发表时间：
2003-03-01
影响因子：
2.4
通讯作者：
Nelson, DR
中科院分区：
文献类型：
--
作者：
Lenz, P;Nelson, DR
我们讨论了二维六角形序对球和圆柱几何中的毛细波和波动模式的影响。在平面几何结构中，扩展键取向顺序对液体表面或脂质双层的波动只有很小的影响。然而，在弯曲的几何形状中，这些波纹的长波长光谱被改变。我们计算这个频率偏移，并讨论应用程序的球形囊泡，液态金属液滴，气泡和圆柱形射流涂有表面活性分子，并在液氦中的多电子气泡在低温下。六角序也导致带电液滴和气泡的裂变不稳定性和液体射流的Plateau-Rayleigh不稳定性的阈值的偏移。
We discuss the influence of two-dimensional hexatic order on capillary waves and undulation modes in spherical and cylindrical geometries. In planar geometries, extended bond-orientational order has only a minor effect on the fluctuations of liquid surfaces or lipid bilayers. However, in curved geometries, the long-wavelength spectrum of these ripples is altered. We calculate this frequency shift and discuss applications to spherical vesicles, liquid metal droplets, bubbles and cylindrical jets coated with surface-active molecules, and to multielectron bubbles in liquid helium at low temperatures. Hexatic order also leads to a shift in the threshold for the fission instability of charged droplets and bubbles, and for the Plateau-Rayleigh instability of liquid jets.