Evidence of antiferroelectric-like ordering from the study of dielectric permittivity-voltage behavior in bent core liquid crystalline material showing B2 phase

被引：2

作者：

Mukherjee, Amrita ^{[1
,2
]}

Bhattacharyya, S. S. ^{[1
,2
]}

Marik, M. ^{[1
]}

Chaudhuri, B. K. ^{[1
]}

Majumdar, K. C. ^{[3
]}

机构：

[1] Indian Assoc Cultivat Sci, Dept Solid State Phys, Kolkata 700032, W Bengal, India

[2] Chonbuk Natl Univ, Dept Polymer Nano Sci & Technol, Polymer BIN Fus Res Ctr, Chonju 561756, Chonbuk, South Korea

[3] Univ Kalyani, Dept Chem, Kalyani 741235, W Bengal, India

来源：

PHASE TRANSITIONS | 2011年 / 84卷 / 11-12期

关键词：

dielectric spectroscopy; bent core liquid crystal; antiferroelectricity; hysteresis; SMECTIC PHASE; HYSTERESIS; RELAXATION; POLARIZATION; TRANSITION; MOLECULES; MODEL;

D O I：

10.1080/01411594.2011.561773

中图分类号：

O7 [晶体学];

学科分类号：

0702 ; 070205 ; 0703 ; 080501 ;

摘要：

Detailed dielectric relaxation behavior of a bent core liquid crystalline material showing B-2 phase has been investigated. Only one relaxation mode is detected in the dielectric relaxation spectrum which was attributed to the long-axis rotation process. Though the field-dependent dielectric study does not reveal any other relaxation mode, the appearance of two humps in the dielectric permittivity-voltage spectrum, similar to the antiferroelectric (AFLC) case, confirms the signature of weak AFLC ordering in the B-2 phase.

引用

页码：908 / 915

页数：8

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