TY - JOUR
T1 - ±1/2 wedge disclinations stabilized by a sinusoidal boundary in a thin hybrid nematic liquid-crystal film
AU - Ohzono, Takuya
AU - Fukuda, Jun Ichi
AU - Suzuki, Kosuke
AU - Yamaguchi, Tomohiko
N1 - Copyright:
Copyright 2012 Elsevier B.V., All rights reserved.
PY - 2012/9/28
Y1 - 2012/9/28
N2 - As an interesting example of how geometry affects the formation of defects, we study the defect structures of a hybrid nematic liquid-crystal film in a wedge-shaped cell made up of sinusoidal microwrinkles and an elastomer sheet. When the cell thickness is larger than a threshold value h c, +1/2 and -1/2 disclinations are simultaneously stabilized along concave grooves and convex crests, respectively. A simple theoretical analysis gives a good estimate of h c. The disclinations also show alternating optical rotations resulting from the curved boundary and liquid-crystal elastic anisotropy.
AB - As an interesting example of how geometry affects the formation of defects, we study the defect structures of a hybrid nematic liquid-crystal film in a wedge-shaped cell made up of sinusoidal microwrinkles and an elastomer sheet. When the cell thickness is larger than a threshold value h c, +1/2 and -1/2 disclinations are simultaneously stabilized along concave grooves and convex crests, respectively. A simple theoretical analysis gives a good estimate of h c. The disclinations also show alternating optical rotations resulting from the curved boundary and liquid-crystal elastic anisotropy.
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U2 - 10.1103/PhysRevE.86.030701
DO - 10.1103/PhysRevE.86.030701
M3 - Article
AN - SCOPUS:84866988985
SN - 1539-3755
VL - 86
JO - Physical Review E - Statistical, Nonlinear, and Soft Matter Physics
JF - Physical Review E - Statistical, Nonlinear, and Soft Matter Physics
IS - 3
M1 - 030701
ER -