AbstractsPhysics

STATISTICAL PHYSICS OF ORIENTATIONAL ORDER AND CURVATURE

by Thanh-Son Nguyen




Institution: Kent State University
Department: College of Arts and Sciences / Department of Chemical Physics
Degree: PhD
Year: 2015
Keywords: Physics; Liquid crystal, statistical physics, nematic shell, orientational order, liquid crystal elastomer, nematic glass, vesicle, differential geometry
Record ID: 2060781
Full text PDF: http://rave.ohiolink.edu/etdc/view?acc_num=kent1421895006


Abstract

Long range orientational order of nematic liquid crystals has been an inspiration for both theoretical works and practical applications. Using a combination of analytic calculations and numerical simulations, we investigate the interplay between orientational order and geometric constraints. In the first part of this dissertation, we concentrate on nematic order in liquid membranes, where the curvature induces non-uniformity and vice versa. Variations in nematic order, especially near topological defects, play an essential role in the interaction with curvature. In the second part, we consider the combination of the anisotropy of nematic liquid crystals with the large reversible deformations of elastomers as a mechanism for programmable deformations in soft materials.