标题：Determination of Optical Birefringence and Orientational Order Parameter of Four Members of Alkyl Cyanobiphenyls Using High Resolution Temperature Scanning Technique
期刊名称：IMPACT : International Journal of Research in Applied, Natural and Social Sciences
印刷版ISSN：2347-4580
电子版ISSN：2321-8851
出版年度：2013
期号：226
页码：1-8
出版社：IMPACT Journals
摘要：We report the measurements of birefringence as a function of temperature of a homologous series of alkyl cyanobiphenyls (nCB) liquid crystalline compounds by means of high resolution optical transmission method. The temperature dependence of the birefringence (n) were determined from the transmitted intensity data for wavelength = 532nm. From the birefringence data, orientational order parameters ( ) were determined using three parameter Haller’s extrapolation technique. The order parameter critical exponents obtained in this way have values
