Do the short helices exist in the nematic TB phase?
Do the short helices exist in the nematic TB phase?
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DOI：
10.1080/02678292.2014.984646
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发表时间：
2015-01-02
期刊：
影响因子：
2.2
通讯作者：
Mehl, Georg H.
中科院分区：
文献类型：
--
作者：
Gorecka, Ewa;Salamonczyk, Miroslaw;Mehl, Georg H.
形成扭曲弯曲向列相、N-Tb、N-相的二聚体化合物显示出与焦点圆锥缺陷(FCD)阵列形成相关的异常光学织构。一些焦锥显示出8 nm周期的亚微米内部结构，这与材料晶相中的结构非常接近，这可能表明表面冻结。
Dimeric compounds forming twist-bend nematic, N-tb,N- phase show unusual optical textures related to the formation of arrays of focal conic defects (FCDs). Some of the focal conics exhibit submicron internal structure with 8nm periodicity, which is very close to that found in the crystalline phase of the material, that might suggest surface freezing.