Thermal fluctuations in smectic-A films on the surface of solid substrates

2004 ◽  
Vol 46 (6) ◽  
pp. 1158-1167 ◽  
Author(s):  
L. V. Mirantsev
Keyword(s):  
Thermal Fluctuations ◽  
Smectic A ◽  
Solid Substrates

LIQUID CRYSTAL EQUILIBRIUM FLUCTUATIONS UNDERSTOOD BY A RELATIONSHIP TO THE DYNAMICS OF GROWING INTERFACES

1993 ◽  
Vol 07 (26) ◽  
pp. 1641-1653
Author(s):  
LEONARDO GOLUBOVIĆ
Keyword(s):  
Three Dimensional ◽  
Thermal Fluctuations ◽  
Physical Problem ◽  
Inversion Symmetry ◽  
Two Dimensional ◽  
Equilibrium Fluctuations ◽  
Exact Approach ◽  
Smectic A ◽  
Relationship Of ◽  
Smectic A Liquid Crystals

We review a recent theoretical progress in understanding equilibrium thermal fluctuations of smectic A liquid crystals. It is based on a relationship of smectics A to a rather different physical problem, namely, the Kardar-Parisi-Zhang (KPZ) dynamical model for interfaces growing in the presence of a flux of incoming particles. This relationship provides an exact approach to study Landau-Peierls phenomena in two-dimensional smectics and reveals the existence of novel elastic critical point in three-dimensional smectics A with broken inversion symmetry.

Thermal Fluctuations of Freely Suspended Smectic-A Films from Mesoscopic to Molecular Length Scales

1997 ◽  
Vol 79 (18) ◽  
pp. 3439-3442 ◽  
Author(s):  
E. A. L. Mol ◽  
G. C. L. Wong ◽  
J. M. Petit ◽  
F. Rieutord ◽  
W. H. de Jeu
Keyword(s):  
Thermal Fluctuations ◽  
Length Scales ◽  
Smectic A ◽  
Molecular Length ◽  
Freely Suspended

scholarly journals Casimir-like interactions and surface anchoring duality in bookshelf geometry of smectic-A liquid crystals

Soft Matter ◽  
2019 ◽  
Vol 15 (10) ◽  
pp. 2216-2222 ◽  
Author(s):  
Fahimeh Karimi Pour Haddadan ◽  
Ali Naji ◽  
Rudolf Podgornik
Keyword(s):  
Liquid Crystals ◽  
Liquid Crystalline ◽  
Thermal Fluctuations ◽  
Surface Anchoring ◽  
Smectic A ◽  
Planar Substrates ◽  
Bounding Surfaces ◽  
Smectic A Liquid Crystals

We analyze the transverse intersubstrate Casimir-like force, arising as a result of thermal fluctuations of the liquid crystalline layers of a smectic-A film confined between two planar substrates in a bookshelf geometry, in which the equidistant smectic layers are placed perpendicular to the bounding surfaces.

Freeze-fracture TEM of the helical smectic A* phase

1992 ◽  
Vol 50 (1) ◽  
pp. 278-279
Author(s):  
K.J. Ihn ◽  
R. Pindak ◽  
J. A. N. Zasadzinski
Keyword(s):  
Liquid Crystal ◽  
Grain Boundary ◽  
Grain Boundaries ◽  
Freeze Fracture ◽  
Smectic Phase ◽  
Layer Spacing ◽  
Screw Dislocations ◽  
Smectic A ◽  
Smectic Phases ◽  
Discrete Amount

A new liquid crystal (called the smectic-A* phase) that combines cholesteric twist and smectic layering was a surprise as smectic phases preclude twist distortions. However, the twist grain boundary (TGB) model of Renn and Lubensky predicted a defect-mediated smectic phase that incorporates cholesteric twist by a lattice of screw dislocations. The TGB model for the liquid crystal analog of the Abrikosov phase of superconductors consists of regularly spaced grain boundaries of screw dislocations, parallel to each other within the grain boundary, but rotated by a fixed angle with respect to adjacent grain boundaries. The dislocations divide the layers into blocks which rotate by a discrete amount, Δθ, given by the ratio of the layer spacing, d, to the distance between grain boundaries, lb; Δθ ≈ d/lb (Fig. 1).

High resolution X-ray studies of the smectic A-nematic transition

1978 ◽  
Vol 3 ◽  
pp. 357-357
Author(s):  
J. Als-Nielsen ◽  
R. J. Birgeneau ◽  
M. Kaplan ◽  
J. D. Litster ◽  
C. R. Safinya
Keyword(s):  
High Resolution ◽  
X Ray ◽  
Smectic A

Nematic-smectic A-reentrant nematic transitions in 80CB : 60CB mixtures

1984 ◽  
Vol 45 (3) ◽  
pp. 529-538 ◽  
Author(s):  
A.R. Kortan ◽  
H. von Känel ◽  
R.J. Birgeneau ◽  
J.D. Litster
Keyword(s):  
Smectic A
Sign in / Sign up

Export Citation Format

Share Document