Abstract
This paper reports on the results of an investigation into the dielectric hysteresis loops of La-and Ce-doped barium strontium niobate, a photosensitive relaxor ferroelectric, both in the dark and under illumination with an intensity of 0.22 mW/cm2. Measurements are performed in a quasi-static electric field at a frequency of 5 × 10−4 Hz for different temperatures in the range of the diffuse phase transition. Illumination increases the hysteresis loop amplitude. The amplitude and the coercive field decrease under heating, and the difference between the loops measured for illuminated and unilluminated crystals disappears gradually as the temperature of the maximum in the permittivity is approached. The experimental results are not in conflict with the assumption that random internal relaxor fields are screened by photoinduced carriers.
Similar content being viewed by others
References
G. A. Smolenskiĭ, V. A. Bokov, V. A. Isupov, N. N. Kraĭnik, R. B. Pasynkov, and M. S. Shur, Ferroelectrics and Antiferroelectrics (Nauka, Leningrad, 1971), p. 355 [in Russian].
M. Lines and A. Glass, Principles and Applications of Ferroelectrics and Related Materials (Oxford University Press, Oxford, 1977; Mir, Moscow, 1981).
V. V. Gladkiĭ, V. A. Kirikov, S. V. Nekhlyudov, T. R. Volk, and L. I. Ivleva, Pis’ma Zh. Éksp. Teor. Fiz. 71(1), 38 (2000) [JETP Lett. 71 (1), 24 (2000)].
T. Granzow, V. Doerfler, Th. Woike, M. Woehleke, R. Pankrath, M. Imlau, and W. Kleeman, Phys. Rev. B: Condens. Matter 63, 174101 (2001).
V. V. Gladkiĭ, V. A. Kirikov, T. R. Volk, and L. I. Ivleva, Zh. Éksp. Teor. Fiz. 120(3), 678 (2001) [JETP 93 (3), 596 (2001)].
V. V. Gladkiĭ, V. A. Kirikov, S. V. Nekhlyudov, T. R. Volk, and L. I. Ivleva, Fiz. Tverd. Tela (St. Petersburg) 42(7), 1296 (2000) [Phys. Solid State 42 (7), 1334 (2000)].
L. E. Cross, Ferroelectrics 76, 241 (1987).
V. M. Fridkin, Photoferroelectrics (Nauka, Moscow, 1979; Springer, Berlin, 1979).
T. Granzow, V. Doerfler, Th. Woike, M. Woehleke, R. Pankrath, M. Imlau, and W. Kleeman, Europhys. Lett. 57, 597 (2002).
V. V. Gladkiĭ, V. A. Kirikov, T. R. Volk, E. S. Ivanova, and L. I. Ivleva, Fiz. Tverd. Tela (St. Petersburg) 47(2), 286 (2005) [Phys. Solid State 47 (2), 298 (2005)].
V. V. Gladkii, V. A. Kirikov, T. R. Volk, and E. S. Ivanova, Ferroelectrics 314, 115 (2005).
L. I. Ivleva, N. V. Bogodaev, N. M. Polozkov, and V. V. Osiko, Opt. Mater. 4, 168 (1995).
V. V. Gladkiĭ, V. A. Kirikov, S. V. Nekhlyudov, and E. S. Ivanova, Fiz. Tverd. Tela (St. Petersburg) 39(11), 2046 (1997) [Phys. Solid State 39 (11), 1829 (1997)].
V. V. Gladkiĭ, V. A. Kirikov, T. R. Volk, D. V. Isakov, and E. S. Ivanova, Fiz. Tverd. Tela (St. Petersburg) 45(11), 2067 (2003) [Phys. Solid State 45 (11), 2171 (2003)].
Author information
Authors and Affiliations
Additional information
Original Russian Text © V.V. Gladkiĭ, V.A. Kirikov, E.S. Ivanova, T.R. Volk, 2007, published in Fizika Tverdogo Tela, 2007, Vol. 49, No. 5, pp. 881–885.
Rights and permissions
About this article
Cite this article
Gladkiĭ, V.V., Kirikov, V.A., Ivanova, E.S. et al. Quasi-static loops of the dielectric hysteresis for a photosensitive relaxor ferroelectric crystal in the temperature range of the diffuse phase transition. Phys. Solid State 49, 930–935 (2007). https://doi.org/10.1134/S1063783407050216
Received:
Issue Date:
DOI: https://doi.org/10.1134/S1063783407050216