Kinetic Study of the Electric Field-Induced Cholestericnematic Transition in Liquid Crystal Films: 1. Relaxation to the Cholesteric State

1970 ◽  
pp. 419-445 ◽  
Author(s):  
J. J. Wysocki ◽  
J. E. Adams ◽  
D. J. Olechna
Keyword(s):  
Liquid Crystal ◽  
Electric Field ◽  
Kinetic Study ◽  
Liquid Crystal Films ◽  
Crystal Films

Surface Forces of the Electric Field Induced Flowin Nematic Liquid Crystals

1984 ◽  
Vol 39 (4) ◽  
pp. 309-319
Author(s):  
J. Grupp
Keyword(s):  
Liquid Crystal ◽  
Liquid Crystals ◽  
Electric Field ◽  
Elastic Constant ◽  
Surface Forces ◽  
Time Constants ◽  
Liquid Crystal Films ◽  
Viscosity Term ◽  
Crystal Films ◽  
Induced Flow

In thin nematic liquid crystal films with homeotropic boundaries, surface forces are measured that are produced by an electric field induced flow. The sample is placed between two horizontal circular glass disks in a torsion viscosimeter, where a torque is exerted on the upper disk by these surface forces. The evolution of the induced flow is registered via this torque. The time constants of this evolution, the viscosity term γ1 - α22/ηc and the elastic constant K3 are determined.

Anomalous orientation of ferroelectric liquid crystal films in an electric field

JETP Letters ◽  
1997 ◽  
Vol 66 (6) ◽  
pp. 442-447 ◽  
Author(s):  
P. O. Andreeva ◽  
V. K. Dolganov ◽  
K. P. Meletov
Keyword(s):  
Liquid Crystal ◽  
Electric Field ◽  
Ferroelectric Liquid Crystal ◽  
Liquid Crystal Films ◽  
Crystal Films
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