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On the Origin of the “Giant” Electroclinic Effect in a “De Vries”‐Type Ferroelectric Liquid Crystal Material for Chirality Sensing Applications |
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| Authors: | Nadia Kapernaum David M Walba Prof Dr Eva Korblova Dr Chenhui Zhu Chris Jones Yongqian Shen Noel A Clark Prof Frank Giesselmann Prof Dr |
| Institution: | 1. Institut für Physikalische Chemie, Universit?t Stuttgart, Pfaffenwaldring 55, 70569 Stuttgart (Germany), Fax: (+49)?711?685?62569;2. Department of Chemistry and Biochemistry, University of Colorado, 215 UCB, Boulder, CO 80309‐0390 (USA);3. Department of Physics, University of Colorado, 215 UCB, Boulder, CO 80309‐0390 (USA) |
| Abstract: | W415 is a chiral smectic compound with a remarkably weak temperature dependence of its giant electroclinic effect in the liquid crystalline smectic A* phase. Furthermore it possesses a high spontaneous polarization in the smectic C* phase. The origin of this striking electroclinic effect is the co‐occurrence of a de Vries‐type ordering with a weak first‐order tilting transition (see the synchroton X‐ray scattering profiles).  |
| Keywords: | chirality chirality sensing electroclinic effect liquid crystals phase transitions |