FERROELECTRIC LIQUID-CRYSTALLINE ORDERING OF RIGID RODS WITH DIPOLAR INTERACTIONS

被引:37
作者
LEE, J
LEE, SD
机构
[1] Physics Department, Sogang University, Seoul
来源
MOLECULAR CRYSTALS AND LIQUID CRYSTALS SCIENCE AND TECHNOLOGY SECTION A-MOLECULAR CRYSTALS AND LIQUID CRYSTALS | 1994年 / 254卷
关键词
D O I
10.1080/10587259408036088
中图分类号
O7 [晶体学];
学科分类号
0702 ; 070205 ; 0703 ; 080501 ;
摘要
A mean-field model for the ferroelectric ordering of hard spherocylinders with dipolar interaction is developed within the Onsager formalism. By performing accurate numerical analyses, a complete phase diagram is obtained in terms of the dipolar strength, the number density, and the pressure of the spherocylinders, which exhibits a usual isotropic-nematic, a nematic-ferroelectric nematic, and a direct isotropic-ferroelectric nematic phase transitions. These results are in reasonable agreement with the recent computer simulations. It is also found that there exists always a direct isotropic-ferroelectric nematic phase transition above a critical dipolar strength.
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页码:395 / 403
页数:9
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