Ferroelectric Liquid Crystal with Extremely Large Spontaneous Polarization

Ferroelectric Liquid Crystal with Extremely Large Spontaneous Polarization
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具有极大自发极化的铁电液晶

DOI：
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发表时间：
1984
期刊：
影响因子：
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通讯作者：
M. Honma
M. Honma
中科院分区：
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文献类型：
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作者：
K. Yoshino;M. Ozaki;T. Sakurai;Kazuta Sakamoto;M. Honma

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在 DOBA-1-MBC 中观察到自发极化的最大值，高达 4.2×10-8 C/cm2。根据介电常数的频率依赖性确定的该材料的弛豫频率比 DOBAMBC 高一个数量级以上。 DOBA-1-MPC 还表现出高达 1.8×10-8 C/cm2 的大自发极化。这些特性是根据这些铁电液晶的分子结构来讨论的。
The greatest value ever reported for spontaneous polarization, as high as 4.2×10-8 C/cm2, is observed in DOBA-1-MBC. The relaxation frequency of this material determined from frequency dependence of the dielectric constant is higher than that of DOBAMBC by more than one order of magnitude. DOBA-1-MPC also indicates large spontaneous polarization as high as 1.8×10-8 C/cm2. These characteristics are discussed in terms of molecular structure of these ferroelectric liquid crystals.