4 papers
Transition to spatially periodic patterns in nematics under oscillatory shear flow: linear analysis
O. S. Tarasov, A. P. Krekhov, L. Kramer
We consider the orientational instabilities, both homogeneous and spatially periodic, developing in a nematic liquid crystal under rectilinear oscillatory Couette flow for director…
Retracting fronts induce spatio-temporal intermittency
Pierre Coullet, Lorenz Kramer
The intermittent route to spatio-temporal complexity is analyzed in a simple model which displays a subcritical bifurcation without hysteresis. A new type of spatio-temporal comple…
Crossover Between Flexoelectric Stripe Patterns and Electroconvection in Hybrid Aligned Nematics
V. A. Delev, A. P. Krekhov, L. Kramer
We report experimental and theoretical results on the flexoelectric instability and crossover between flexoelectric domains and electroconvection in a hybrid aligned nematic MBBA u…
Influence of weak anchoring on flow instabilities in nematic liquid crystals
O. S. Tarasov, A. P. Krekhov, L. Kramer
We analyse the homogeneous instabilities in a nematic liquid crystal subjected to plane steady Couette or Poiseuille flow in the case when the director is pre-aligned perpendicular…