Document Detail

Dynamic light scattering as a probe of orientational dynamics in confined liquid crystals
MedLine Citation:
PMID:  11046445     Owner:  NLM     Status:  Publisher    
The eigenmodes of director orientational fluctuations in nematic liquid crystals in confined geometries were studied both theoretically and experimentally by dynamic light-scattering tehnique. The fundamental mode of the orientational fluctuations shows a crossover from bulk behavior, dominated by bulk elastic constant K, to surface dominated one, in which the relaxation rate is determined by the ratio of surface anchoring strength W and viscosity eta. The contribution of surface viscosity zeta is also significant when its characteristic length zeta/eta becomes comparable to the size of the confined system. It was measured in nematic liquid crystal in cylindrical pores of polycarbonate (Nuclepore) membranes to be of the order of 10 nm.
Mertelj; Copic
Related Documents :
20365545 - Nonequilibrium fluctuation theorems in the presence of a time-reversal symmetry-breakin...
17155235 - Work fluctuation theorems for harmonic oscillators.
21871395 - Safety and compliance of prescription spectacles ordered by the public via the internet.
15267675 - A cell model of a liquid droplet.
16231435 - A mathematical model of the response of semicircular canal and otolith to head rotation...
20721005 - High power red and near-ir generation using four wave mixing in all integrated fibre la...
Publication Detail:
Journal Detail:
Title:  Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics     Volume:  61     ISSN:  1063-651X     ISO Abbreviation:  Phys Rev E Stat Phys Plasmas Fluids Relat Interdiscip Topics     Publication Date:  2000 Feb 
Date Detail:
Created Date:  2000-11-08     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9887340     Medline TA:  Phys Rev E Stat Phys Plasmas Fluids Relat Interdiscip Topics     Country:  UNITED STATES    
Other Details:
Languages:  Eng     Pagination:  1622-8     Citation Subset:  -    
Jozef Stefan Institute, Jamova 39, 1001 Ljubljana, Slovenia.
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

Previous Document:  Effects of fluctuations in the orientational order parameter in the cyanobiphenyl (nCB) homologous s...
Next Document:  Diffusion-limited aggregation: A relationship between surface thermodynamics and crystal morphology