Development of Textures in Nematic and Smectic (Ferro-Electric) Rubbers

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• Prof. M Warner, Theory of Condensed Matter Group, Cavendish Laboratory
• Thursday 08 March 2007, 16:00-17:00
• Mott Seminar Room, Cavendish Laboratory, Department of Physics.

If you have a question about this talk, please contact Stephen Walley.

Liquid crystalline elastomers can spontaneously deform by 100% as they lose and regain their order by heating or by illumination. They can also deform, by rotating their order, at low energy cost in response to applied stress at constant temperature. They form textures on deformation if their low cost shapes are incommensurate with boundaries. Their ferro-electric forms are also likely to deform via textures, for instance as their polarisation is switched by mechanical fields. I shall subject these exotic rubbers to temperature change during the lecture.

This talk is part of the Physics and Chemistry of Solids Group series.

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