Pressure studies on phase transitions in 4-alkoxyphenyl-4’-nitrobenzoyloxybenzoates

Please use this identifier to cite or link to this item: http://hdl.handle.net/2289/1280

Title:	Pressure studies on phase transitions in 4-alkoxyphenyl-4’-nitrobenzoyloxybenzoates
Authors:	Raja, V.N. Ratna, B.R. Shashidhar, R. Heppke, G. Bahr, Ch. Marko, J.F. Indekeu, J.O. Nihat, Berker A.
Issue Date:	15-Apr-1989
Publisher:	The American Physical Society
Citation:	Physical Review A, 1989, Vol.39, 4341
Abstract:	We have studied the effect of high pressure on the phase transitions in the seventh to tenth homologs of 4-alkoxyphenly-4’-nitrobenzoyloxybenzoates (DB.kO.NO2). While pressure does not induce any new phases in k=7 or 8, it has a dramatic effect on k=10: triply reentrant behavior is seen over a narrow range of pressure, the sequence of transitions being the same as that observed in k=9 or DB.9O.NO2 at atmospheric pressure. This is the first instance of pressure-induced multiply reentrant behavior in a single-component system. The observed sensitivity of the multiply reentrant behavior to molecular chain length and pressure is according to the predictions of the frustrated spin-gas model of polar liquid crystals.
URI:	http://hdl.handle.net/2289/1280
ISSN:	1094-1622 (online) 1050-294
Alternative Location:	http://link.aps.org/abstract/PRA/v39/p4341
Copyright:	(1989) by the American Physical Society
Appears in Collections:	Research Papers (SCM)

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