Electrooptic response of smectic O and smectic O |
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| Authors: | P. E. Cladis Helmut R. Brand |
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| Affiliation: | 1. AT&2. T Bell Laboratories , Murray Hill , New Jersey , 07974 , U.S.A.;3. FB 7, Physik , Universit?t Essen , D 4300, Essen , 1 , Germany |
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| Abstract: | Abstract We present the results of our investigations on the electrooptic properties of the smectic O and O* phases of m7tac (1-methylheptyl terephthalylidene-bis-4-aminocinnamate). At low voltages, we observed striking electrochromic effects and, in O* at high voltages, a field induced phase transition. Freely suspended thick films of m7tac in the O and O* phases are weakly biaxial. A framework is proposed to account for our observations. |
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