Abstract
An anomalous orientation of ferroelectric liquid crystals in an electric field is observed. The tilt planes of the molecules are oriented in a direction parallel to the electric field. The anomalous orientation is observed in freely suspended films above the smectic-C*-smectic-A bulk phase transition temperature. The effect is explained by the appearance of giant flexoelectric polarization, 104 times greater than that in bulk liquid-crystal samples, in the film.
Similar content being viewed by others
References
P.-G. de Gennes, The Physics of Liquid Crystals, Clarendon Press, Oxford, 1974 [Russian translation, Mir, Moscow, 1977].
S. A. Pikin, Structural Transformations in Liquid Crystals [in Russian], Nauka, Moscow, 1981.
M. Born and E. Wolf, Principles of Optics, Pergamon Press, New York, 1964 [Russian translation, Nauka, Moscow, 1970].
T. Stoebe, P. Mach, and C. C. Huang, Phys. Rev. Lett. 74, 1384 (1994).
E. I. Demikhov, V. K. Dolganov, and K. P. Meletov, Phys. Rev. E 52, R1285 (1995).
V. K. Dolganov, E. I. Demikhov, R. Fouret, and C. Gors, Phys. Lett. A 220, 242 (1996).
S. Heinekamp, R. A. Pelcovits, E. Fontes et al., Phys. Rev. Lett. 52, 1017 (1984).
S. M. Amador and P. S. Pershan, Phys. Rev. A 41, 4226 (1990).
Ch. Bahr, C. Booth, D. Fliegner, and J. W. Goodby, Phys. Rev. E 52, 4612 (1995).
N. Mikami, R. Higuchi, T. Sakurai et al., Jpn. J. Appl. Phys., Part 1 25, 833 (1986).
Ch. Bahr, C. Booth, D. Fliegner, and J. W. Goodby, Europhys. Lett. 34, 507 (1996).
V. K. Dolganov, E. I. Demikhov, R. Fouret, and C. Gors, Zh. Éksp. Teor. Fiz. 111, 949 (1997) [JETP 84, 522 (1997)].
B. I. Ostravskii, A. Z. Rabinovich, A. S. Sonin et al., JETP Lett. 25, 70 (1977).
L. M. Blinov, Electro-Optical and Magneto-Optical Properties of Liquid Crystals, Wiley, New York, 1983 [Russian original, Nauka, Moscow, 1978].
Author information
Authors and Affiliations
Additional information
Pis’ma Zh. Éksp. Teor. Fiz. 66, No. 6, 414–418 (25 September 1997)