Zobrazeno 1 - 10
of 13
pro vyhledávání: '"Atsuo Iida"'
Publikováno v:
Japanese Journal of Applied Physics. 42:4431-4437
We investigated the local layer structures in ferroelectric liquid crystal (FLC) cells which have a monostable switching mode using synchrotron X-ray micro diffraction. The monostable switching mode is realized by the FLC cells filled with a material
Autor:
A. D. L. Chandani Perera, Jagdish K. Vij, Ken Ishikawa, Atsuo Iida, Zhengyu Feng, Yoichi Takanishi, Atsuo Fukuda
Publikováno v:
Physical Review E. 96:012701
A mixture of two selenium-containing compounds, 80 wt. % AS657 and 20 wt. % AS620, are studied with two complementary methods, electric-field-induced birefringence (EFIB) and microbeam resonant x-ray scattering (μRXS). The mixture shows the typical
Autor:
Yoichi Takanishi, Haruhiko Yao, Jun Yamamoto, Atsuo Iida, Hideo Takezoe, Takuya Fukasawa, Youko Ohtsuka, Yumiko Takahashi, Kenji Ema
Publikováno v:
The journal of physical chemistry. B. 118(14)
We analyzed the local nanostructure in binary mixtures of rod- and bent-shaped molecules, n-pentyl-4-cyanobiphenyl (5CB) and 1,3-phenylene bis[4-(4-n-octyloxyphenyliminomethyl) benzoates] (P-8-OPIMB), respectively, using small- and wide-angle X-ray m
Publikováno v:
J. Mater. Chem.. 16:815-817
The layer structure and intralayer molecular orientation in the B1 phase of a prototype bent-core molecule have been investigated using an X-ray microbeam. At small angles, in the absence of an electric field only one pair of diffraction spots was ob
Publikováno v:
Powder Diffraction. 19:53-55
Local layer structures and their formation process in a half-V-shaped switching ferroelectric liquid crystal (HV-FLC) were investigated by means of synchrotron X-ray microdiffraction. The HV-FLC is a FLC that has a cholesteric–chiral smectic C (Ch
Autor:
Yoichi Takanishi, Ken Ishikawa, Toyokazu Ogasawara, Yumiko Takahashi, Hideo Takezoe, Atsuo Iida
Publikováno v:
Japanese Journal of Applied Physics. 40(2A):728-730
The layer structure of the chiral smectic phase showing V-shaped switching was investigated using the X-ray diffraction method. In thin planar cells of a three-component mixture in which V-shaped switching was first reported, the chevron layer struct
Publikováno v:
Optical Interference Coatings.
Detailed X-ray diffraction study of silica films with single crystalline mesoporous structures shows that the behavior of X-rays in these mesoporous materials with nano-scaled structural regularity is quite identical to that in real crystals.
Autor:
Megumi Toshimitsu, Ken Ishikawa, Junji Watanabe, Yumiko Takahashi, Yoichi Takanishi, Tatsuya Izumi, Michi Nakata, Hideo Takezoe, Naoki Takada, Atsuo Iida
Publikováno v:
Physical Review E. 74
The layer structures in bent-shaped liquid crystal dimers mOAM5AMOm (m=6-16) have been investigated by x-ray microbeam diffraction. These liquid crystal molecules have two rodlike mesogens connected with an odd-numbered alkylene spacer and form a ben
Autor:
Yoichi Takanishi, Darren R. Link, Atsuo Iida, Michi Nakata, Noel A. Clark, Hideo Takezoe, Yumiko Takahasi, David Coleman, Jirakorn Thisayukta, Junji Watanabe, Hiroko Niwano
Publikováno v:
Physical Review E. 71
We report x-ray microbeam studies of a bent-core liquid crystalline material with chiral citronellyl tails. This material has an equilibrium polarization-modulated smectic-$CP$ $(\mathrm{PM}\text{\ensuremath{-}}\mathrm{Sm}CP)$ state exhibiting the ${
Publikováno v:
Journal of Materials Chemistry. 21:4465
A bromo-substituted chiral smectic liquid crystal was synthesized for the purpose of the study on the sub-phases of the chiral smectic C* (SmC* variants) using resonant X-ray scattering. The introduction of a bromo atom was found to have a significan