COMMENT ON PERIODIC DISTORTIONS IN LYOTROPIC NEMATIC CALAMITIC LIQUID-CRYSTALS

Authors
GRIGUTSCH M STANNARIUS R
Citation
M. Grigutsch et R. Stannarius, COMMENT ON PERIODIC DISTORTIONS IN LYOTROPIC NEMATIC CALAMITIC LIQUID-CRYSTALS, Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics, 56(6), 1997, pp. 7323-7325
Citations number
NO
Journal title
Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics → ACNP
ISSN journal
1063651X
Volume
56
Issue
6
Year of publication
1997
Pages
7323 - 7325
Database
ISI
SICI code
1063-651X(1997)56:6<7323:COPDIL>2.0.ZU;2-D
Abstract
Simoes Palangana, and Evangelista [Phys. Rev. E 54, 3765 (1996)] descr ibe the spatial periodicity of director wall arrays in a lyotropic nem atic by means of elastic theory. We believe that this treatment is inc orrect; the approach cannot describe a wavelength selection mechanism. The texture originates from a dynamic dissipative process. A hydrodyn amic description is appropriate and leads to well understood relations between observed wavelengths and viscoelastic parameters.