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Appl. Phys. Lett. 36, 899 (1980); http://dx.doi.org/10.1063/1.91359 (3 pages)

Submicrosecond bistable electro‐optic switching in liquid crystals

Noel A. Clark and Sven T. Lagerwall

Department of Physics, Chalmers Technical University, Goteberg, Sweden

Ferroelectric smectic C (FSC) liquid crystals are used in a simple new geometry that allows the spontaneous formation of either of two surface‐stabilized smectic C monodomains of opposite ferroelectric polarization. These domains are separated by well‐defined walls which may be manipulated with an applied electric field. The resulting electro‐optic effects exhibit a unique combination of properties: microsecond dynamics, threshold behavior, symmetric bistability, and a large electro‐optic response.

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0003-6951 (print)  
1077-3118 (online)

  1. R. B. Meyer, L. Liebert, L. Strzelecki, and P. Keller, J. Phys. Lett. 36, L69–71 (1975).
  2. P. Martinot-Lagarde, J. Phys. (Paris) 37-C3, 129–132 (1976).
  3. The suppression of the helix for the stronger boundary condition gamma1 = 0, gamma2 = Omega0 to form a unique stable SC monodomain has been demonstrated [M. Brunet and C. Williams, Ann. Phys. 3, 237–248 (1978)].
  4. S. Garoff, Ph.D. thesis, Harvard University, 1977 (unpublished).
  5. DOBAMBC is decyloxybenzylidene p[prime]-amino 2 methyl butyl cinnamate. See Ref. 1;, HOBACPC is hexyloxybenzylidene p[prime]-amino 2 chloropropyl cinnamate. See P. Keller, S. Juge, L. Liebert, and L. Strzelecki, C. R. A. S. 282C, 639–641 (1976). Both compounds have isotropic-SA-SC-SF phases.
  6. Sample thickness was determined using the Newton color sequence.
  7. P. Martinot-Lagarde, J. Phys. (Paris) Lett. 38, L17–19 (1977). [Inspec] [ISI]



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