Author/Editor		Rovšek, B; Žekš, B
Title		The SmA - SmC* (SmC) phase transition in a planar cell with a polar surface coupling
Type		članek
Source		Mol Cryst Liq Cryst
Vol. and No.		Letnik 263
Publication year		1995
Volume		str. 49-59
Language		eng
Abstract		The phase transition from the SmA to the lower-temperature SmC or SmC phase in a restricted geometry of a planar cell is studied theoretically, considering a polar coupling of the ferroelectric liquid crystal to the surfaces. The lambda-line in a (2L,T) phase diagram, where T is the temperature and 2L is the cell thickness, is determined numerically. The critical temperature Tc of the SmA - SmC (SmC) phase transition exibits nonmonotonic dependence on the cell thickness 2L. Two tricritical points are found on the lambda-line, which could be candidates for the Lifshitz points.
Descriptors		PHYSICS MODELS, THEORETICAL