This article is cited in 19 papers

Ferroelectricity

Anomalous losses of lead in crystallization of the perovskite phase in thin PZT films

V. P. Pronin^ab, S. V. Senkevich^ab, E. Yu. Kaptelov^b, I. P. Pronin<sup>b

a</sup> Herzen State Pedagogical University of Russia, St. Petersburg
^b Ioffe Institute, St. Petersburg

Abstract: A study has been performed of the mechanisms underlying evolvement of excess lead oxide from lead zirconate titanate films grown ex-situ in two different regimes by magnetron sputtering. In the first case, crystallization of the dense phase of perovskite passed through an intermediate “porous” phase, and in the second, straight through. It has been found that the anomalously large losses of lead are caused by migration of lead over interphase porous boundaries to the surface of the films and depend strongly on the regime of film preparation. The unusual variation of film composition with increasing annealing temperature has been discussed.

Received: 18.06.2012

 English version: Physics of the Solid State, 2013, 55:1, 105–108

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