期刊
PHYSICAL REVIEW LETTERS
卷 101, 期 19, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.101.198101
关键词
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资金
- NSF [DMR-0305407, DMR-0705105]
- Royal Society
- EPSRC [EP/E065678/1]
- Syracuse Biomaterials Institute
- Engineering and Physical Sciences Research Council [EP/E065678/1] Funding Source: researchfish
- EPSRC [EP/E065678/1] Funding Source: UKRI
We study the dynamical properties of active polar liquid crystalline films. Like active nematic films, active polar films undergo a dynamical transition to spontaneously flowing steady states. Spontaneous flow in polar fluids is, however, always accompanied by strong concentration inhomogeneities or banding not seen in nematics. In addition, a spectacular property unique to polar active films is their ability to generate spontaneously oscillating and banded flows even at low activity. The oscillatory flows become increasingly complicated for strong polarity.
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