Particularities of the Dynamics of Linear Domains in Liquid Crystals under a Binary Acoustic Action
- Авторлар: Kapustina O.A.1
-
Мекемелер:
- Andreev Acoustics Institute, Russian Academy of Sciences
- Шығарылым: Том 64, № 3 (2019)
- Беттер: 443-450
- Бөлім: Liquid Crystals
- URL: https://journals.rcsi.science/1063-7745/article/view/193964
- DOI: https://doi.org/10.1134/S1063774519030131
- ID: 193964
Дәйексөз келтіру
Аннотация
The dynamical properties of a system of linear domains induced by shear oscillations in a planar layer of a nematic liquid crystal under the joint action of shear and piston oscillations at frequencies in the audio range, have been studied experimentally. The phenomenon of spatial modulation of the domains of an initial system along their axis under the piston oscillations producing periodic layer compression is investigated for the case where the directions of the director in a mesophase layer and the shear oscillations coincide. A relationship between the period of secondary two-dimensional structures at the effect threshold and the layer thickness as well as oscillation frequency is established. It is shown that the formation mechanism of these structures can be interpreted on the basis of a known phenomenological model, according to which the instability of the initial system of these linear domains is caused by the “mismatch” between the real period of domains and its optimal value, which varies jointly with the variations in the thickness of a periodically compressed layer.
Авторлар туралы
O. Kapustina
Andreev Acoustics Institute, Russian Academy of Sciences
Хат алмасуға жауапты Автор.
Email: oakapustina@yandex.ru
Ресей, Moscow
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