The European Physical Journal B - Condensed Matter and Complex Systems

, Volume 21, Issue 3, pp 335–340

Frequency dependence of aging, rejuvenation and memory in a disordered ferroelectric

  • J.-Ph. Bouchaud
  • P. Doussineau
  • T. de Lacerda-Arôso
  • A. Levelut

DOI: 10.1007/s100510170175

Cite this article as:
Bouchaud, JP., Doussineau, P., de Lacerda-Arôso, T. et al. Eur. Phys. J. B (2001) 21: 335. doi:10.1007/s100510170175

Abstract:

We characterize in details the aging properties of the ferroelectric phase of KTa1-xNbx O3 (KTN), where both rejuvenation and (partial) memory are observed. In particular, we carefully examine the frequency dependence of several quantities that characterize aging, rejuvenation and memory. We find a marked subaging behaviour, with an a.c. dielectric susceptiblity scaling as ω\(\), where tw is the waiting time. We suggest an interpretation in terms of pinned domain walls, much along the lines proposed for aging in a disordered ferromagnet, where both domain wall reconformations and overall (cumulative) domain growth are needed to rationalize the experimental findings.

PACS. 05.40.-a Fluctuation phenomena, random processes, noise, and Brownian motion – 77.22.Gm Dielectric loss and relaxation – 78.30.Ly Disordered solids

Copyright information

© EDP Sciences, Springer-Verlag 2001

Authors and Affiliations

  • J.-Ph. Bouchaud
    • 1
  • P. Doussineau
    • 2
  • T. de Lacerda-Arôso
    • 3
  • A. Levelut
    • 2
  1. 1.Service de Physique de l'État Condensé, CEA Saclay, 91191 Gif-sur-Yvette Cedex, FranceFR
  2. 2.Laboratoire des Milieux Désordonnés et Hétérogènes, Université Pierre et Marie Curie, Case 86, 75252 Paris Cedex 05, FranceFR
  3. 3.Departamento de Fisica, Universidade do Minho, 4709 Braga, PortugalPT