Abstract
Temperature dependences of dielectric dispersions in the homogenous and homeotropic alignment cells of 2-chloro-4-(4-pentylbenzoyloxy)benzoate (PCPB) were measured in the nematic phase in the frequency range between 100 Hz and 1 MHz. The obtained dielectric dispersions, ε′(ω) and ε′′(ω), could be explained using the Cole–Cole formula accounting for DC conduction. The parameter values in this formula were determined by the least-squares method. The frequency dependence of the dielectric anisotropy, including the dual-frequency characteristic, was well reproduced with our parameter values. The activation energy Ea for molecular reorientation was estimated as approximately 9 × 102 meV. The crossover frequency fc was approximately proportional to the relaxation frequency fr in PCPB.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
