TY - JOUR
T1 - Anomalous deformation of smectic bubbles under DC electric field
AU - Ishii, Yoko
AU - Sugisawa, Shin Ya
AU - Tabe, Yuka
N1 - Funding Information:
This work was supported by KAKENHI (Grant-in-Aid for Science Research) on Priority Area “Soft Matter Physics” from the Ministry of Education, Culture, Sports, Science and Technology of Japan.
PY - 2011
Y1 - 2011
N2 - Hemispherical bubbles composed of smectic liquid crystals show an unusual deformation under DC electric field. When the lower voltage than a threshold is applied to the bubble on a substrate, it is elongated in the direction of the electric field and forms a semi-elliptical shape in the equilibrium. With the higher voltage than the threshold, the bubble becomes unstable and sometimes exhibits a periodic oscillation with repeating the elongation and shrinkage. Based on a simple equation of force balance, we analyzed both the static and dynamic deformations under DC field and successfully reproduced the observed behaviour. By the detailed analysis, we also determined the surface tension and the electric conductivity of the smectic bubbles.
AB - Hemispherical bubbles composed of smectic liquid crystals show an unusual deformation under DC electric field. When the lower voltage than a threshold is applied to the bubble on a substrate, it is elongated in the direction of the electric field and forms a semi-elliptical shape in the equilibrium. With the higher voltage than the threshold, the bubble becomes unstable and sometimes exhibits a periodic oscillation with repeating the elongation and shrinkage. Based on a simple equation of force balance, we analyzed both the static and dynamic deformations under DC field and successfully reproduced the observed behaviour. By the detailed analysis, we also determined the surface tension and the electric conductivity of the smectic bubbles.
UR - http://www.scopus.com/inward/record.url?scp=80053351943&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=80053351943&partnerID=8YFLogxK
U2 - 10.1080/15421406.2011.581151
DO - 10.1080/15421406.2011.581151
M3 - Article
AN - SCOPUS:80053351943
SN - 1542-1406
VL - 549
SP - 166
EP - 173
JO - Molecular Crystals and Liquid Crystals
JF - Molecular Crystals and Liquid Crystals
ER -