Paper Title:
Simulation of Surface-Enhanced Ordering in Smectic Films
  Abstract

A Landau-de Gennes type model for the direct isotropic/smectic A phase transition is used to study surface-enhanced smectic ordering in the stable smectic temperature regime. A unified surface-free energy functional is proposed which can be utilized for homeotropic and planar surface anchoring. The time-dependent complex Landau-Ginzburg evolution equations and boundary conditions are derived for thin-film geometry. Simulation results are presented for the two types of anchoring and compared to observations from experiments and previous simulations. Simple visualization software for smectic layering was developed and is also presented that is compatible with discretized numerical solutions of the model.

  Info
Periodical
Solid State Phenomena (Volume 139)
Edited by
Veena Tikare, Graeme E. Murch, Frédéric Soisson and Jeung Ku Kang
Pages
135-140
DOI
10.4028/www.scientific.net/SSP.139.135
Citation
N. M. Abukhdeir, A. D. Rey, "Simulation of Surface-Enhanced Ordering in Smectic Films", Solid State Phenomena, Vol. 139, pp. 135-140, 2008
Online since
April 2008
Export
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: S. Krishna Prasad
Abstract:Employing actinic light to alter/stabilize a particular thermodynamic phase via the photo-isomerization of the constituent molecules is an...
29
Authors: I Min Jiang, Yu Jen Chen, Wen Chi Hung, C.T. Kuo, D.J. Jang, Chia Chi Shih, Ming Shan Tsai
Abstract:Nematic liquid crystals (NLCs) can be easily reoriented by the laser beam at the temperature closed to the nematic–isotropic phase transition...
224
Authors: Jais Bin Lias, Munehiro Kimura, Tadashi Akahane
Abstract:The photoalignment technology for the alignment of liquid crystal molecules has lately gathered much attention because its advantages over...
1752
Authors: P.V. Datta Prasad, G. Padmaja Rani, V.G.K.M. Pisipati
I. Physics of Liquid Crystals
Abstract:The nature of the phase transitions across isotropic–nematic (IN) and nematic–smectic-A (N-SmA) are carried out using density measurements in...
115
Authors: Chun Bo Liu, Yan Fang Guan
Chapter 3: Material Engineering
Abstract:As a purpose of developing new micro-actuator driven by the liquid crystal flow, transient behaviors of a nematic liquid crystal between two...
264