Abstract
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.
| Original language | English |
|---|---|
| Article number | 030701 |
| Journal | Physical Review E - Statistical, Nonlinear, and Soft Matter Physics |
| Volume | 86 |
| Issue number | 3 |
| DOIs | |
| Publication status | Published - Sep 28 2012 |
| Externally published | Yes |
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All Science Journal Classification (ASJC) codes
- Statistical and Nonlinear Physics
- Statistics and Probability
- Condensed Matter Physics
Cite this
±1/2 wedge disclinations stabilized by a sinusoidal boundary in a thin hybrid nematic liquid-crystal film. / Ohzono, Takuya; Fukuda, Jun Ichi; Suzuki, Kosuke; Yamaguchi, Tomohiko.
In: Physical Review E - Statistical, Nonlinear, and Soft Matter Physics, Vol. 86, No. 3, 030701, 28.09.2012.Research output: Contribution to journal › Article
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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
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
VL - 86
JO - Physical Review E
JF - Physical Review E
SN - 2470-0045
IS - 3
M1 - 030701
ER -