Permittivity of Chiral Smectics in the Broad Range from 0.1 mHz to 50 kHz: Discovery of Sub-mHz Dielectric Dispersion

Pozhidaev E; Freire FCM; Yednak CAR; Strigazzi A; Torgova S; Molkin V; Minchenko M

Molecular Crystals and Liquid Crystals, Vol.546, 186-194, 2011

DOI10.1080/15421406.2011.571151 Export Citation

Permittivity of Chiral Smectics in the Broad Range from 0.1 mHz to 50 kHz: Discovery of Sub-mHz Dielectric Dispersion

Pozhidaev E, Freire FCM, Yednak CAR, Strigazzi A, Torgova S, Molkin V, Minchenko M

Dielectric dispersion of a chiral smectic liquid crystal has been measured in the very broad frequency range from 0.1mHz to 50kHz. Two regions of dispersion have been recognized: the first one, from 0.1mHz to 0.1Hz was for the first time measured, the second one, from 100Hz to 50kHz, which is known as mainly due to Goldstone mode, has been confirmed.

Keywords:Chiral smectic liquid crystal;dielectric dispersion;dielectric susceptibility;Goldstone mode;permittivity