Ion ordering and ferroelectricity in Pb(B′_0.5 B″_0.5)O₃ perovskites

Author: Isupov, V.

Source: Physics of the Solid State, Volume 49, Number 3, March 2007 , pp. 505-509(5)

Publisher: MAIK Nauka/Interperiodica

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Abstract:

The Pb(B′_0.5 B″_0.5)O₃ ferroelectric with a perovskite structure and the antiferroelectric of the same composition are usually considered to be the same compound regardless of whether the B′ and B″ ions in the octahedral positions are ordered even though they differ substantially in behavior. It is established that ion ordering can also occur in PZT-type solid solutions of the composition Pb(B′_x B″_{1 − x})O₃ with x ≍ 0.5. The mechanism of the influence of ion ordering on the behavior of crystals of both complex perovskites and PZT-type ceramics is discussed.

Keywords: 61.50.Ks; 64.60.-i; 77.80.Bh; 77.84.Dy

Document Type: Research article

DOI: http://dx.doi.org/10.1134/S1063783407030213

Affiliations: 1: Email: pronin@inprof.ioffe.ru

Publication date: 2007-03-01