title: Effects of fullerene addition on the thermo-optical properties of smectic liquid crystals at the vicinity of the nematic-smectic-A phase transition.
abstract: The present work is devoted to the study of the thermo-optical properties of liquid crystals doped with traces of fullerene C(60) 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.
authors.affiliation: Instituto de Física, Universidade Federal de Alagoas 57072-970 Maceió-AL, Brazil.
authors.forename: Lidiane
authors.initials: L
authors.lastname: Omena
authors.affiliation: Instituto de Física, Universidade Federal de Alagoas 57072-970 Maceió-AL, Brazil.
authors.forename: Pedro B
authors.initials: PB
authors.lastname: de Melo
authors.affiliation: Instituto de Física, Universidade Federal de Alagoas 57072-970 Maceió-AL, Brazil.
authors.forename: Maria S S
authors.initials: MS
authors.lastname: Pereira
authors.affiliation: Instituto de Física, Universidade Federal de Alagoas 57072-970 Maceió-AL, Brazil.
authors.forename: Italo N
authors.initials: IN
authors.lastname: de Oliveira