Anisotropic surface order in the isotropic phase of nematic liquid crystals

Salim Al Harthi*, A. K. George

*المؤلف المقابل لهذا العمل

نتاج البحث: المساهمة في مجلةArticleمراجعة النظراء

6 اقتباسات (Scopus)

ملخص

A spinning-drop technique was used to study the thermal variation of surface tension of two nematic liquid crystals at the interface with an isotropic fluid. A sharp increase in interfacial tension was observed in the vicinity of the nematic-isotropic transition. The interfacial tension-temperature characteristics, unlike monotonically decreasing dependence found in most isotropic fluids, showed regions of positive slope, both in the isotropic and anisotropic phases. A positive slope in the isotropic region of the liquid crystal is interesting since it implies that excess order has developed at the surface while the bulk interior remains isotropic.

اللغة الأصليةEnglish
الصفحات (من إلى)519-523
عدد الصفحات5
دوريةCrystal Research and Technology
مستوى الصوت32
رقم الإصدار4
المعرِّفات الرقمية للأشياء
حالة النشرPublished - 1997

ASJC Scopus subject areas

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