Changes in the optical and electrophysical properties of langmuir films of liquid crystals upon a ferroelectric phase transition
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The adsorption isotherms of water molecules, spectra of diffuse reflection and of reflected-light polarization, and electrophysical properties of hyperfine films fabricated on the basis of liquid crystals have been studied. A structural phase transition was detected at a temperature of about 70°C; near the transition, features of light polarization, of the reflection coefficient’s behavior, and of the temperature dependence of the sample capacitance have been found. Hypotheses regarding the nature of the phase transition are proposed.
KeywordsLiquid Crystal Phase Transition Surface Investigation Neutron Technique Structural Phase Transition
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