Avtor/Urednik		Levstik, A; Kutnjak, Z; Žekš, B; Dumrongrattana, S; Huang, CC
Naslov		Dielectric method for determining the electrical critical field in ferroelectric liquid crystals
Tip		članek
Vir		J Phys II
Vol. in št.		Letnik 1, št. 7
Leto izdaje		1991
Obseg		str. 797-803
Jezik		eng
Abstrakt		Both the electrical critical field and the dielectric constant (etha0 delta ethaG) associated with the Goldstone mode in the ferroelectric liquid crystals are related to the helical pitch. A direct relation between these two physical quantities is established. We have calculated the electrical critical field for both DOBAMBC and DOBA-1-MPC compound fromt he measured temperature variation of etha0 delta ethaG and polarization without any adustable parameter. Just below the transition temperature region, the results obtained agree qualitatively with the experimental data. Away from the transition temperature, thre exist systematic deviations.
Deskriptorji		RESEARCH DESIGN TEMPERATURE ELECTROMAGNETIC FIELDS CRYSTALLOGRAPHY THERMODYNAMICS