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The effect of confinement on the stability of field induced states and on supercooling in antiferro ferroelectric phase transitions in chiral smectic liquid crystals

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Academic year: 2020

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Figure

FIG. 1. Chemical structure of 12OF1M7 ��Kingston Chemicals, Hull, UK�.The phase sequence is SmC*A �77.2 °C� SmC*A�1/3� �80.2 °C� SmC*A�1/2�82.8 °C� SmC* �90.2 °C� SmC�* �91.8 °C� SmA*.
FIG. 3. �Color online� Microscopic images recorded during the coolingexperiment without ac field in Fig
FIG. 4. �Color online� Micrographs taken under the polarizing microscopeand the apparent tilt angle as a function of the amplitude of the applied fieldin homogeneously aligned �12OF1M7� in planar cell with thickness of 9 µmat a temperature of 50 °C
FIG. 5. �tween the polarization vectors or theincreases as the number of layers in a period increases.Color online� Schematics of the field induced three-layered, four-layered, and five-layered structures
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