Abstract
We report experimental results for the thermal conductivities of 4-n-pentyl-4’-cyanobiphenyl (5CB) for 19 °C<T<48 °C. For T<=35.17 °C this substance is a nematic liquid crystal, where is the nematic-isotropic transition temperature. The conductivities were determined by measuring the temperature difference across a horizontal layer of the fluid heated from below in magnetic fields either parallel or perpendicular to the heat current. The field magnitude was much larger than the Fréedericksz field. For T<, this yielded monodomain samples with the director oriented parallel to the field, and thus the conductivities and with the director parallel and perpendicular to the heat current, respectively.
- Received 26 July 1993
DOI:https://doi.org/10.1103/PhysRevE.49.545
©1994 American Physical Society