The nature of domain stabilization in ferroelectric perovskites

Paul Lambeck, G.H. Jonker

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Abstract

Ferroelectric perovskites, such as Pb(Ti,Zr)O3 and BaTiO3, are subject to ageing effects, caused by a gradual stabilization of the ferroelectric domain structure. We studied the development of this stabilization in Mn-doped BaTiO3 monocrystals having a special kind of domain structure. We concluded from measurements of the growth of the internal bias field Ei and the change of the sideways 180° domain-wall mobility with time, that the fairly strong stabilization in this material originates from volume effects, which implies a gradual reorientation of polar defects with respect to the direction of the spontaneous polarization, both 180° domain-wall pinning and surface-layer effects being completely absent. A proposal is made about the nature of these defects.
Original languageUndefined
Pages (from-to)453-461
JournalJournal of physics and chemistry of solids
Volume47
Issue number5
DOIs
Publication statusPublished - 1986

Keywords

  • domain-structure stabilization
  • Barium titanate
  • IR-69707
  • Ferroelectric
  • Ageing

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