Telephone-cord instabilities in thin smectic capillaries
نویسندگان
چکیده
منابع مشابه
Telephone-cord instabilities in thin smectic capillaries.
Telephone-cord patterns have been recently observed in smectic liquid-crystal capillaries. We analyze the effects that may induce them. As long as the capillary keeps its linear shape, we show that a nonzero chiral cholesteric pitch favors the Sm-A*-Sm-C* transition. However, neither the cholesteric pitch nor the presence of an intrinsic bending stress is able to give rise to a curved capillary...
متن کاملSmectic layer instabilities in liquid crystals.
Scientists aspire to understand the underlying physics behind the formation of instabilities in soft matter and how to manipulate them for diverse investigations, while engineers aim to design materials that inhibit or impede the nucleation and growth of these instabilities in critical applications. The present paper reviews the field-induced rotational instabilities which may occur in chiral s...
متن کاملUndulation instabilities in the meniscus of smectic membranes.
Using optical microscopy, phase shifting interferometry, and atomic force microscopy, we characterize the undulated structures which appear in the meniscus of freestanding ferroelectric smectic-C* films. We demonstrate that these periodic structures correspond to undulations of the smectic-air interface. The resulting striped pattern disappears in the untilted smectic-A phase. The modulation am...
متن کاملOscillatory convective instabilities in cholesteric and smectic A liquid crystals
2014 We predict the occurrence of an oscillatory convective instability when a planar texture of cholesteric or smectic A liquid crystals is heated from below. J. P/nBs/~ LETTRES 41 (1980) L-383 L-386 15 AO(J’T 1980,
متن کاملElectrohydrodynamic Instabilities in the Liquid Crystalline Phases with Smectic Ordering
An investigation has been made of the frequency characteristics of the threshold voltage of domain instabilities induced by an electric field in both homogeneously and homeotropically oriented liquid crystal layers. The mesogens had the nematic and smectic A phases and their anisotropy of the electrical conductivity changed its sign at the critical temperature somewhat above the nematic-smectic...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Physical Review E
سال: 2005
ISSN: 1539-3755,1550-2376
DOI: 10.1103/physreve.71.051701