Abstract.
The isothermal aging of the asymmetry induced in the disordered dielectric crystal \(\mbox{KTa}_{1-x} \mbox{Nb}_{x} \mbox{O}_{3} \) (x=0.027) submitted to the biasing electric field E, is investigated. To this end, the response of the complex dielectric constant to infinitesimal field changes \(\delta{\bf E}\), applied to the sample after a variable aging delay, has been measured for different magnitudes of E and after different aging delays. Two different experimental procedures have been used: in both cases the response strongly depends on the time spent under field. For short aging delays, the response has a strong contribution proportional to δE and a weak quadratic contribution proportional to \(\left({\delta E}\right)^2\). As time elapses, the linear and the quadratic contributions age in opposite ways: the former decreases whereas the latter increases. This paradoxical behaviour is analyzed in the framework of a model which attributes aging and the related effects (rejuvenation, memory) to the evolution of polarization domain walls: the decrease of the linear contribution is related to the decrease of the total wall area, while the increase of the quadratic term is attributed to wall reconformations.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
E. Vincent, J.-P. Bouchaud, J. Hammann, F. Lefloch, Philos. Mag. B 71, 489 (1995)
E. Vincent, V. Dupuis, M. Alba, J. Hammann, J.-P. Bouchaud, Europhys. Lett. 50, 674 (2000)
L. Lundgren, P. Svedlindh, P. Norblad, O. Beckman, Phys. Rev. Lett. 51, 911 (1983)
E. Vincent, J. Hammann, M. Ocio, J.-P. Bouchaud, L.E. Cugliandolo, in Complex Behaviour of Glassy Systems, Lecture Notes in Physics, Vol. 492, edited by M. Rubi (Springer Verlag, 1997)
F. Alberici, P. Doussineau, A. Levelut, J. Phys. I 7, 329 (1997)
E.V. Colla, L.K. Chao, M.B. Weissman, D.D. Viehland, Phys. Rev. Lett. 85, 3033 (2000)
O. Kircher, R. Böhmer, Euro. Phys. J. B 26, 329 (2002)
A.V. Kityk, M.C. Rheinstädter, K. Knorr, H. Rieger, Phys. Rev. B 65, 144415 (2002)
V. Mueller, Y. Shchur, Europhys. Lett. 65, 137 (2004)
P. Doussineau, T. de Lacerda-Arôso, A. Levelut, Europhys. Lett. 46, 401 (1999)
P. Doussineau, A. Levelut, Europhys. Lett. 55, 739 (2001)
U.T. Höchli, K. Knorr, A. Loidl, Adv. Phys. 39, 405 (1990); B. Vugmeister, M. Glinchuk, Rev. Mod. Phys. 62, 993 (1990)
W. Kleeman, Int. J. Mod. Phys. B 7, 2469 (1993)
P. Doussineau, T. de Lacerda-Arôso, A. Levelut, Euro. Phys. J. B 16, 455 (2000)
P. Doussineau, A. Levelut, Europhys. Lett. 55, 739 (2001)
P. Doussineau, A. Levelut Euro. Phys. J. B 26, 13 (2002)
B. Bonello, P. Doussineau, V. Dupuis, A. Levelut, Europhys. Lett. 66, 521 (2004)
J.-P. Bouchaud, P. Doussineau, T. de Lacerda-Arôso, A. Levelut, Europhys. J. B 21, 335 (2001)
D. Fontana, E. Bouziane, G.E. Kugel, J. Phys.: Condens. Matter 2, 8681 (1990); E. Bouziane, D. Fontana, W. Kleemann, J. Phys.: Condens. Matter 6, 1965 (1994)
B. Bonello, P. Doussineau, A. Levelut, Phys. Rev. B 67, 094209 (2003)
T. Nattermann, Ferroelectrics 104, 171 (1990)
J.-P. Bouchaud, Soft and Fragile Matter: Non Equilibrium Dynamics, Metastability, and Flow, edited by M.E. Carter, M.R. Evans (Institute of Physics Publishing, Bristol and Philadelphia, 2000), p. 285
This simple calculation of the wall contribution to the dielectric constant implies that the walls are sufficiently regular. If they were fractal, the result (decreasing of the wall contribution when the domain size increases) would be still valid as long as the dimensionality of the surface is 2+η with η<1 (the regular case corresponds to η=0)
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Bonello, B., Doussineau, P., Dupuis, V. et al. Aging of the field-induced asymmetry in a disordered ferroelectric. Eur. Phys. J. B 52, 219–225 (2006). https://doi.org/10.1140/epjb/e2006-00279-5
Received:
Published:
Issue Date:
DOI: https://doi.org/10.1140/epjb/e2006-00279-5