Zobrazeno 1 - 10
of 63
pro vyhledávání: '"Atsuo Iida"'
Publikováno v:
Physical Review E. 93
Microbeam resonant x-ray scattering experiments recently revealed the sequential emergence of electric-field-induced subphases (stable states) with exceptionally large unit cells consisting of 12 and 15 smectic layers. We explain the emergence of the
Publikováno v:
Liquid Crystals. 37:1091-1096
The local molecular orientation in the electroclinic effect of the chiral smectic A phase in a surface-stabilised cell has been determined using a time-resolved synchrotron X-ray microbeam diffraction technique. Space- and time-resolved X-ray wide-an
Autor:
Yoichi Takanishi, Atsuo Iida
Publikováno v:
Liquid Crystals. 34:1285-1290
Focal conics consisting of an ellipse and a hyperbola in chiral smectic C liquid crystals aligned in surface‐stabilized cells of medium thickness (about 25 µm cell gap) were characterized in relation to the chevron structure by synchrotron X‐ray
Publikováno v:
Liquid Crystals. 32:717-726
The local layer structure of surface stabilized electroclinic liquid crystals has been analysed by time‐resolved synchrotron X‐ray microdiffraction. At a low applied electric field, the initial bookshelf structure starts to respond above a thresh
Autor:
Yuya Shinohara, Atsuo Iida, Yoshiyuki Amemiya, Takashi Itou, Yoshio Kajiura, Shunichi Watanabe
Publikováno v:
Journal of Applied Crystallography. 38:420-425
The technique of scanning microbeam small-angle X-ray scattering (SAXS) has been applied to investigate the inhomogeneity in the nanostructure of a single bilateral wool fibre in relation to two types of cortices, the so-called orthocortex and paraco
Autor:
Toshio Nishi, Yoshinobu Nozue, Rei Kurita, Satoru Ueno, Yoshiyuki Amemiya, Naohiko Kawasaki, Atsuo Iida, Satomi Hirano
Publikováno v:
Polymer. 45:8299-8302
In poly(e caprolacton) (PCL)/poly(vinyl butyral) (PVB) blend which forms band spherulite, some straight lines along the radial direction of the spherulites are observed under polarized optical microscope (POM). By using microbeam scanning WAXS, we ha
Publikováno v:
Ferroelectrics. 311:41-50
The local layer of the antiferroelectric liquid crystal has been investigated as a function of the temperature near the SmA to SmC A * phase transition by synchrotron X-ray microbeam diffraction. The stripe texture in the SmA phase well above the pha
Autor:
Atsuo Iida
Publikováno v:
X-Ray Spectrometry. 40:376-378
This study proposes simple techniques involving the use of a thin wire set close to the sample surface to measure the elemental depth distribution in microbeam X-ray fluorescence analysis. One is the X-ray fluorescence detection in energy-dispersive
Autor:
Toyokazu Ogasawara, Yumiko Takahashi, Yoichi Takanishi, Ken Ishikawa, Hideo Takezoe, Atsuo Iida
Publikováno v:
Molecular Crystals and Liquid Crystals Science and Technology. Section A. Molecular Crystals and Liquid Crystals. 365:853-860
Direct observation of the local layer response of an antiferroelectric liquid crystal to the step form electric field has been carried out by a time resolved synchrotron X-ray micro diffraction measurement. When an electric field was changed from hig
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. :1021-1025
The local structure of highly ordered mesostructured silica films was investigated by using a synchrotron X-ray microbeam and a CCD X-ray detector. Two-dimensional X-ray diffraction patterns clearly showed the detailed arrangement of the mesostructur