Field-induced phase transitions in chiral smectic liquid crystals studied by the constant current method
Dhaouadi H†, , Zgueb R, Riahi O, Trabelsi F, Othman T
       

Time dependence of Vc (constant current signal) for product C10F3 with a cell thickness of 5 μm and a constant current intensity of 5 nA. The slopes of the linear parts allow the values of εeff before and after the transition to be measured. The measurements of Δt and ΔVc on both sides of a plateau make it possible to measure ΔPs.