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Effects of fullerene addition on the thermo-optical properties of smectic liquid crystals at the vicinity of the nematic–smectic-A phase transition

Lidiane Omena, Pedro B. de Melo, Maria S. S. Pereira, and Italo N. de Oliveira

  • Instituto de Física, Universidade Federal de Alagoas 57072-970 Maceió-AL, Brazil

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Phys. Rev. E 89, 052511 – Published 27 May, 2014

DOI: https://doi.org/10.1103/PhysRevE.89.052511

Abstract

The present work is devoted to the study of the thermo-optical properties of liquid crystals doped with traces of fullerene C60 at the vicinity of the nematic–smectic-A phase transition. By using the time-resolved Z-scan technique, we measure the temperature dependence of the thermo-optical coefficient and the thermal diffusivity. Our results reveal that the critical behavior of the thermal diffusivity is strongly affected by the fullerene addition. We provide a detailed discussion under the light of the distinct mechanisms behind the thermal transport in liquid-crystal samples.

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Phys. Rev. E 89, 052511– Published 27 May, 2014
  • Received 28 March 2014

©2014 American Physical Society

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