Thermally stable nonlinear optical activity in a smectic-A liquid crystal
Article Abstract:
The use of liquid crystals containing mesogens attached to macromolecular siloxane rings circumvents the thermally-activated decay of non-centrosymmetric order. A shear-aligned melt of these composite macromolecules generates materials with a monodomain lamellar superstructure. These structures retain bistable field-induced polar order above the glass transition temperature. An energetically favourable polar packing of the constituent macromolecules is responsible for the thermal stability of these materials.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 1996
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Violation of the incompressibility of liquid by simple shear flow
Article Abstract:
A new mechanism of flow-induced instability of liquid matter, which predicts that, for very viscous liquids, the shear-induced instability should occur at moderate shear rates that are experimentally accessible, is proposed. It is shown that a liquid can become mechanically unstable above a critical shear rate that is given by the inverse of the derivative of viscosity with respect to pressure.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 2006
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Transparent nemetic phase in a liquid-crystal-based microemulsion
Article Abstract:
A transparent nematic phase is determined in a liquid-crystal-based microemulsion.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 2001
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