Features of Relaxation of a Stress Tensor in the Microscopic Volume of Nematic Phase under the Action of a Strong Electric Field

Journal Article · Thu Feb 15 04:00:00 EST 2018 · Physics of the Solid State

DOI:https://doi.org/10.1134/S1063783418020312· OSTI ID:22788229

A numerical study of new regimes of reorientation of director field n̂, velocity v, and components of stress tensor σ{sub ij} (ij = x, y, z) of nematic liquid crystal (LC) encapsulated in a rectangular channel under the action of a strong electric field E directed at angle α(∼(π/2)) to the horizontal surfaces bounding the LC channel is proposed. The numerical calculations performed in the framework of nonlinear generalization of the classical Eriksen-Leslie theory have shown that at certain relations between the torques and momenta affecting the unit LC volume and E ≫ E{sub th}, transition periodic structures can emerge during reorientation of n̂, if the corresponding distortion mode has the fastest response, and, thus, suppress all other modes. Rotating domains originating within this process decrease the energy dissipation rate and create more favorable regimes of the director field reorientation, as compared with the uniform rotational displacement.

• OSTI ID: 22788229
• Journal Information: Physics of the Solid State, Journal Name: Physics of the Solid State Journal Issue: 2 Vol. 60; ISSN 1063-7834
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ELECTRIC FIELDS
ENERGY LOSSES
LIQUID CRYSTALS
NONLINEAR PROBLEMS
NUMERICAL ANALYSIS
PERIODICITY
RELAXATION
STRESSES
SURFACES
TENSORS
TORQUE