Počet záznamů: 1
Electro-optic switching and dielectric spectroscopy studies of ferroelectric liquid crystals with low and high spontaneous polarization
0350503 - FZU-D 2011 RIV CH eng J - Článek v odborném periodiku
Malik, P. - Raina, K.K. - Bubnov, Alexej - Choudhary, A. - Singh, R.
Electro-optic switching and dielectric spectroscopy studies of ferroelectric liquid crystals with low and high spontaneous polarization.
Thin Solid Films. Roč. 519, č. 3 (2010), 1052-1055 ISSN 0040-6090
Grant CEP: GA AV ČR IAA100100911; GA AV ČR(CZ) GA202/09/0047
Grant ostatní: RFASI(RU) 02.740.11.5166
Výzkumný záměr: CEZ:AV0Z10100520
Klíčová slova: spontaneous polarization * ferroelectric liquid crystal * relaxation frequency * Goldstone mode
Kód oboru RIV: BM - Fyzika pevných látek a magnetismus
Impakt faktor: 1.909, rok: 2010
Electro-optic and dielectric studies have been carried out on two ferroelectric liquid crystalline materials: namely, the commercial mixture possessing low spontaneous polarization and pure material with high spontaneous polarization on cells with planar alignment. The calculated values of spontaneous polarization, response time and rotational viscosity were found ~ 240nC/cm2, 20nC/cm2, 1600μs, 500μs, 230kg/ms and 19kg/ms for high and low polarization ferroelectric liquid crystalline materials, respectively. For the ferroelectric liquid crystal with high polarization, the effect of temperature, frequency and bias field on the dielectric properties have been studied and the obtained results were compared to those obtained on the ferroelectric liquid crystalline mixture with low spontaneous polarization.
Trvalý link: http://hdl.handle.net/11104/0190494