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Densities, refractive indices, and order parameters of a binary liquid‐crystalline system with an induced smectic A phase
Author(s) -
Hauser A.,
Ernst S.,
Hamann A.,
Pelzl G.
Publication year - 1994
Publication title -
crystal research and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.377
H-Index - 64
eISSN - 1521-4079
pISSN - 0232-1300
DOI - 10.1002/crat.2170290331
Subject(s) - refractive index , binary number , phase (matter) , order (exchange) , liquid crystal , chemistry , materials science , condensed matter physics , optics , thermodynamics , physics , mathematics , organic chemistry , arithmetic , finance , economics
For the binary mixture of 4′‐Nitrophenyl 4‐n‐octyloxybenzoate and 4‐n‐Octyloxyphenyl 4′‐pentyloxybenzoate with an induced smectic A phase the refractive indices ( n c and n o ) and the density were measured in dependence on the temperature. The orientational order parameter and the density were calculated using a mean field fitting method. In the induced S A phase the refractive indices and the calculated orientational order parameters are showing only a weak dependence on concentration. The calculated and measured densities are in the same order of magnitude.