Molecular Crystals and Liquid Crystals, Vol.541, 460-473, 2011
Chiral Smectics: As Observed through Dielectric Spectroscopy
Chiral compounds show rich variety of smectic phases viz. SmC alpha*, SmC beta*, SmC gamma*, SmC*, SmCA* due to different correlation between adjacent layers and various TGB phases due to different orientation of blocks of layers. Dielectric spectroscopy has proven as an important tool for the characterization of various smectic phases posses by chiral compounds. Dielectric spectra of these phases are sometimes complex but rich in information and are very helpful in the determination of the structure of these phases. Dielectric spectroscopy of the above phases observed in the recently synthesized materials is discussed with regards to their structure property relationship.