The tensor order parameter of a model nematic liquid crystal close to a rough surface has been analyzed by means of molecular dynamics simulations. We show that the rough surface induces a smectic C layering. Moving towards the bulk, the smectic order disappears and a depression in the uniaxial orientational order below its bulk value occurs, accompanied by a considerable biaxiality. Correspondingly, the director orientation undergoes a strong distortion localized within a few molecular lengths.

Surface-induced order parameters profiles in a nematic liquid crystal from molecular dynamic simulations / J., Stelzer; P., Galatola; Barbero, Giovanni; L., Longa. - In: MOLECULAR CRYSTALS AND LIQUID CRYSTALS SCIENCE AND TECHNOLOGY. SECTION A, MOLECULAR CRYSTALS AND LIQUID CRYSTALS. - ISSN 1058-725X. - 299:1(1997), pp. 61-64. [10.1080/10587259708041974]

Surface-induced order parameters profiles in a nematic liquid crystal from molecular dynamic simulations

BARBERO, GIOVANNI;
1997

Abstract

The tensor order parameter of a model nematic liquid crystal close to a rough surface has been analyzed by means of molecular dynamics simulations. We show that the rough surface induces a smectic C layering. Moving towards the bulk, the smectic order disappears and a depression in the uniaxial orientational order below its bulk value occurs, accompanied by a considerable biaxiality. Correspondingly, the director orientation undergoes a strong distortion localized within a few molecular lengths.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11583/1660445
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