The origin of the photoferroelectric effect in liquid crystals, where the spontaneous polarization of a chiral ferroelectric smectic-C\* (SmC\*) host phase is changed by the E,Z-photoisomerization of azobenzene dopant molecules, was investigated by kinetic studies on the molecular isomerization and
Determination of the tilt angle in the smectic C phase of bis-(heptyloxy)-azoxybenzene by means of dielectric measurements
β Scribed by Benguigui, L. ;Cabib, D.
- Publisher
- John Wiley and Sons
- Year
- 1978
- Tongue
- English
- Weight
- 557 KB
- Volume
- 47
- Category
- Article
- ISSN
- 0031-8965
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The complete structure of the mis5t layer compound [(EuS) 1.5 ] 1.15 NbS 2 is described as a (3Ψ1)-dimensional intergrowth compound with two modulated subsystems ( β«Ψβ¬ 1, 2, for NbS 2 and EuS, respectively) which have the (a\* 2 , a\* 3 ) reciprocallattice plane in common. A superspace embedding fol