Dynamics of the Goldstone mode near the point of polarization sign reversal in ferroelectric liquid crystal–aerosil mixtures

2005 ◽  
Vol 32 (8) ◽  
pp. 1013-1020 ◽  
Author(s):  
StanisŁaw A. Różański ◽  
Jan Thoen
Keyword(s):  
Liquid Crystal ◽  
Goldstone Mode ◽  
Ferroelectric Liquid Crystal ◽  
Sign Reversal ◽  
Polarization Sign

Parameter characteristics of a ferroelectric liquid crystal with polarization sign reversal

1988 ◽  
Vol 84 (1) ◽  
pp. 167-181 ◽  
Author(s):  
R. Eidenschink ◽  
T. Geelhaar ◽  
E. Merck ◽  
G. Andersson ◽  
A. Dahlgren ◽  
...  
Keyword(s):  
Liquid Crystal ◽  
Ferroelectric Liquid Crystal ◽  
Sign Reversal ◽  
Polarization Sign

EFFECT OF CELL THICKNESS ON THE DIELECTRIC RELAXATION PROCESSES IN FERROELECTRIC LIQUID CRYSTALS

2008 ◽  
Vol 22 (14) ◽  
pp. 2263-2273 ◽  
Author(s):  
RAJBIR SINGH ◽  
K. K. RAINA
Keyword(s):  
Liquid Crystal ◽  
Dielectric Relaxation ◽  
Dielectric Strength ◽  
Relaxation Processes ◽  
Goldstone Mode ◽  
Ferroelectric Liquid Crystal ◽  
Dielectric Relaxation Spectroscopy ◽  
Dielectric Parameters ◽  
Liquid Crystal Material ◽  
Cell Thickness

Dielectric relaxation spectroscopy in the frequency range 50 Hz to 1 MHz has been carried out in a room temperature ferroelectric liquid crystal mixture in the SmC*, SmA and N* phases in cells of different thickness. The relaxation frequency fr, distribution parameter α and dielectric strength δ∊ have been evaluated. Goldstone mode, domain mode and soft mode have been observed. It is found that the cell thickness has a significant effect on the dielectric parameters of the ferroelectric liquid crystal material. The results have been discussed.

Sign in / Sign up

Export Citation Format

Share Document