Аникеев Д.И., Капустина О.А., Лупанов В.Н. «Структурные превращения в планарных образцах нематических жидких кристаллов в ультразвуковом поле» Журнал экспериментальной и теоретической физики, 100, № 1, с. 197-204 (1991)

An unconventional description of ultrasonically induced changes of the orientational state of planar nematic liquid crystals (NLCs) is discussed. The NLC is described on the basis of nonequilibrium hydrodynamics approach, which takes into account the relaxational character of these changes and the anisotropy of the elastic properties of the mesophase, whereas the approach based on classical Leslie–Ericksen hydrodynamics considers only the anisotropy of the viscous properties of the NLC. The agreement between the theory and the obtained experimental data on the threshold characteristics of the observed spatially modulated structures confirms that the new approach is well-grounded.