Title :
Dielectric investigation on newly synthesized H-shaped dimer
Author :
Dixit, Sudhaker ; Manohar, Rajit ; Prajapati, A.K. ; Varia, Mayank
Author_Institution :
Phys. Dept., Univ. of Lucknow, Lucknow, India
Abstract :
The present study reports dielectric study of newly synthesized unusual H shaped mesogenic dimer. We have performed dielectric study with temperature variation in the frequency range 100 Hz to 40 MHz. The present study is important due to unusual shape of these liquid crystal dimer. The dielectric results suggest that relaxation mode has been observed in MHz region for the sample . For the sample relaxation mode follows Cole-Cole theory. Relaxation frequency and relaxation strength have been evaluated from Cole-Cole plot. In addition to this, activation energy has also been calculated from Arrhenius plot showing higher value than other conventional liquid crystal material.
Keywords :
dielectric losses; dielectric relaxation; organic compounds; permittivity; smectic liquid crystals; Arrhenius plot; Cole-Cole theory; H-shaped mesogenic dimer; activation energy; dielectric constant; dielectric investigation; dielectric loss; frequency 100 Hz to 40 MHz; liquid crystal dimer; relaxation frequency; relaxation mode; relaxation strength; Current measurement; Dielectrics; Electrodes; Frequency synthesizers; Materials; Permittivity; Topology; Activation analysis; Dielectric constant; Liquid crystals;
Conference_Titel :
Advanced Nanomaterials and Emerging Engineering Technologies (ICANMEET), 2013 International Conference on
Conference_Location :
Chennai
Print_ISBN :
978-1-4799-1377-0
DOI :
10.1109/ICANMEET.2013.6609297