Spontaneous Formation of Quasi-Bookshelf Layer Structure in New Ferroelectric Liquid Crystals Derived from a Naphthalene Ring
Spontaneous Formation of Quasi-Bookshelf Layer Structure in New Ferroelectric Liquid Crystals Derived from a Naphthalene Ring
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萘环衍生的新型铁电液晶中准书架层结构的自发形成
DOI：
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发表时间：
1990
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影响因子：
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通讯作者：
M. Nakatsuka
中科院分区：
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作者：
Y. Takanishi;Y. Ouchi;H. Takezoe;A. Fukuda;A. Mochizuki;M. Nakatsuka
在室温下，用传统的摩擦方法在萘衍生液晶组成的FLC混合物中获得了类书架层结构。这种层结构是自发形成的，由于一个独特的温度依赖性的层间距; X射线衍射表明，层间距从34减少到33.5埃，然后增加到33.8埃，随着SmC* 的温度降低。与层间距的异常行为相反，光学确定的指向矢倾斜角显示出普通的温度依赖性，并在室温下达到相对较大的值，即17°。
A quasi-bookshelf layer structure has been obtained by a conventional rubbing method at room temperature in a FLC mixture composed of naphthalene-derived liquid crystals. This layer structure is spontaneously formed due to a unique temperature dependence of the interlayer spacing; X-ray diffraction indicates that the layer spacing decreases from 34 to 33.5 Å and then increases to 33.8 Å with decreasing temperature in SmC*. Contrary to the unusual behavior of the layer spacing, the director tilt angle determined optically shows ordinary temperature dependence and attains a relatively large value, 17°, at room temperature.