Abstract

The Aurivillius phases Bin+1Fen−3Ti3O3n+3 have been synthesized via solid state reactions. Mössbauer spectroscopy and X-ray analysis have revealed the dependence of Fe ions distribution over the nonequivalent sites and of unit cell parameters on the number of perovskite-like layers in the Aurivillius phases. Said dependencies are shown to undergo abrupt changes when the perovskite-like block becomes 2nm thick.

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