TY - JOUR
T1 - Simultaneous observation of molecular tilt and azimuthal angle distributions in spontaneously modulated liquid-crystalline langmuir monolayers
AU - Tabe, Yuka
AU - Shen, Nan
AU - Mazur, Eric
AU - Yokoyama, Hiroshi
N1 - Copyright:
Copyright 2017 Elsevier B.V., All rights reserved.
PY - 1999
Y1 - 1999
N2 - We carried out the first quantitative measurements of correlated modulations of molecular tilt and azimuthal angles in two-dimensional smectic- C Langmuir monolayers using simultaneous linear- and circular-polarized reflected light microscopy. For spontaneously formed stripes and higher-order point defects, the tilt angle varies nearly sinusoidally at twice the spatial frequency of the azimuthal rotation. The tilt modulation grows as the second power of the modulation wave number and leads to a large escaped core for the point defect. Our results can be explained by an extended Landau theory of tilted smectics.
AB - We carried out the first quantitative measurements of correlated modulations of molecular tilt and azimuthal angles in two-dimensional smectic- C Langmuir monolayers using simultaneous linear- and circular-polarized reflected light microscopy. For spontaneously formed stripes and higher-order point defects, the tilt angle varies nearly sinusoidally at twice the spatial frequency of the azimuthal rotation. The tilt modulation grows as the second power of the modulation wave number and leads to a large escaped core for the point defect. Our results can be explained by an extended Landau theory of tilted smectics.
UR - http://www.scopus.com/inward/record.url?scp=4243581222&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=4243581222&partnerID=8YFLogxK
U2 - 10.1103/PhysRevLett.82.759
DO - 10.1103/PhysRevLett.82.759
M3 - Article
AN - SCOPUS:4243581222
VL - 82
SP - 759
EP - 762
JO - Physical Review Letters
JF - Physical Review Letters
SN - 0031-9007
IS - 4
ER -