Stripe instabilities in the menisci of free-standing smectic films: influence of the phase sequence of the mesogenic material

Stripe instabilities in the menisci of free-standing smectic films: influence of the phase sequence of the mesogenic material
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独立式近晶薄膜弯月面的条纹不稳定性:介晶材料相序的影响

DOI:
10.1080/02678292.2018.1446558
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发表时间:
2017
期刊:
影响因子:
2.2
通讯作者:
K. Harth
K. Harth
中科院分区:
化学3区
文献类型:
--
作者:
R. Stannarius;A. Eremin;K. Harth

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我们简要地报告条纹图案的实验观察的独立近晶C膜的结晶体。结果是用直接从向列相转变为近晶C相的介晶化合物获得的,没有中间近晶A相。在这种情况下,它表明,条纹不对应于近晶自由表面和近晶层的起伏,确实是在以前的研究与其他化合物和不同的相序列证明。因此,我们的研究结果表明,在独立的薄膜条纹图案的性质取决于所考虑的材料的相序。进一步的实验和理论工作仍然需要充分阐明的物理机制,驱动发病的模式,在这样的系统。
We briefly report experimental observations of striped patterns in the menisci of free-standing smectic C films. The results were obtained with a mesogenic compound that transits directly from the nematic phase to the smectic C phase, without an intermediate smectic A phase. In this case, it is shown that stripes do not correspond to undulations of the smectic free surface and smectic layers, as was indeed evidenced in previous studies with other compounds and different phase sequences. Hence, our results show that the nature of striped patterns in free-standing films depends on the phase sequence of the considered materials. Further experimental and theoretical works are still required to fully elucidate the physical mechanisms that drive the onset of patterns in such systems.
独立近晶薄膜半月板的原子力显微镜
DOI: --
发表时间: 2011
期刊:
影响因子: --
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