Dynamics of a sheared twist-bend nematic liquid crystal

Non-Newtonian Rheology in Twist–Bend Nematic Liquid Crystals

“…in the agreement with experimental data [20] - [21]. Now we are in the position to estimate the first threshold value γc1 for the shear rate.…”

“…Then we expect η3 is shear rate independent quantity and we have the Newtonian-like rheology. Thus our simple model qualitatively explains all three rheological regimes observed experimentally [20] - [21] in the N T B phase.…”

“…Above certain temperature T * (below N − N T B phase transition point T c , where N stands for conventional nematic state) the behavior becomes pure Newtonian. The aim of this paper is to present theoretical rationalization for the observed in these works [20], [21] results. In what follows we integrate the input from recent works and discussions, however my own contribution to this field will be also presented.…”

“…Recent progress in rheology of the N T B liquid crystals has led to a number of new and exciting experimental results [20], [21]. In the paper we propose a simple heuristic approach to rationalize these new experimental data.…”

“…Our paper is motivated by two very recent works [20] - [21] on rheological studies of the N T B liquid crystals. The authors of these papers found nontrivial non-Newtonian behavior of sheared N T B nematics.…”