Anomalous Dielectric Behaviour in Biphenyl Ester Series of Ferroelectric Liquid Crystals
Anomalous Dielectric Behaviour in Biphenyl Ester Series of Ferroelectric Liquid Crystals
复制标题
联苯酯系列铁电液晶的反常介电行为
DOI：
10.1143/jjap.25.l833
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发表时间：
1986
期刊：
影响因子：
--
通讯作者：
K. Yoshino
中科院分区：
文献类型：
--
作者：
N. Mikami;R. Higuchi;T. Sakurai;M. Ozaki;K. Yoshino
在链长n大于9的烷基羰氧基(CnH2n+1COO)联苯酯系列铁电液晶中表现出异常介电行为。即使在手性近晶-C 相中，自发极化也变为 0，在 30°C 左右，观察到倾斜角符号反转，表明自发极化的符号发生变化。这种异常行为的起源也从分子相互作用的角度进行了讨论。
In ferroelectric liquid crystals of biphenyl ester series with alkylcarbonyloxy (CnH2n+1COO) chain length n longer than 9 exhibit anomalous dielectric behaviour. The spontaneous polarization becomes 0, even in the chiral smectic-C phase, at around 30°C at which the reversal of the sign of the tilt angle is observed, indicating a change of the sign of the spontaneous polarization. The origin of this anomalous behaviour is also discussed in terms of molecular interactions.