1ST-ORDER PARAELECTRIC-ANTIFERROELECTRIC PHASE-TRANSITION IN A CHIRAL SMECTIC LIQUID-CRYSTAL OF A FLUORINE CONTAINING PHENYL PYRIMIDINE DERIVATIVE

被引：48

作者：

INUI, S ^{[1
]}

KAWANO, S ^{[1
]}

SAITO, M ^{[1
]}

IWANE, H ^{[1
]}

TAKANISHI, Y ^{[1
]}

HIRAOKA, K ^{[1
]}

OUCHI, Y ^{[1
]}

TAKEZOE, H ^{[1
]}

FUKUDA, A ^{[1
]}

机构：

[1] TOKYO INST TECHNOL,DEPT ORGAN & POLYMER MAT,MEGURO KU,TOKYO 152,JAPAN

来源：

JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS | 1990年 / 29卷 / 06期

关键词：

Antiferroelectric phase; Dielectric constant; Ferroelectric liquid crystal; First order phase transition; Interlayer spacing; Tristable switching; X-ray diffraction;

D O I：

10.1143/JJAP.29.L987

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The first-order phase transition between paraelectric SmA and antiferroelectric SmCA* phases has been observed for the first time in (S)-4-(1-trifluoromethylheptyloxycarbonyl)phenyl 4-(5-dodecyloxypyrimidin-2-yl)benzoate (TFMHPDOPB). Three pieces of evidence for the first-order phase transition are shown by means of DSC, X-ray and dielectric measurements. The DSC peak of the SmA-SmCA* transition is as large as the one for the Iso-SmA transition. The temperature dependences of the interlayer spacing determined by X-ray diffraction and of the dielectric constant reveal marked discontinuous jumps at the SmA-SmCA* phase transition. © 1990 The Japan Society of Applied Physics.

引用

页码：L987 / L990

页数：4

共 29 条

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