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Liquid crystalline materials used. M1: Cr (91 °C) Nx (109 °C) Nu (127 °C) Iso; M2: Cr (95 °C) Nx (124.9 °C) Nu (180 °C) Iso; and M3: Cr (85 °C) Nx (123 °C) Nu (170 °C) Iso. M2+ monomer: Cr (59.3 °C) Nx (102 °C) Nu (154 °C) Iso.
(Color online) Oscillogram of the optical response in Nx phase of M2. Uapplied = 96.8 V Pk − Pk .
(Color online) POM textures of M2 in planar cells of 2 μm (a) and 5 μm (b,c,d) thickness. Domain boundary at 0 V(a,b), +200 V DC (c,e), and −200 V DC (d,f). White bar length is 100 μm. In (e,f), n 1 and n 2 are the optical axes in the neighboring domains deviated in the opposite directions and the dotted red line corresponds to the domain boundary
(Color online) Alternating electric field of the waveform shown by the red line (top of this figure) was applied to the cell during the temperature ramp. (Applied voltage amplitude: 10 V0− Pk , Period: 50 s, and heating rate: 0.1 °C/min). Retardation is marked to the right, and azimuthal angle to the left.
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