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Kinetics of phase transformations in lead scandium tantalate thin films

  • J. Battat
  • , Z. Huang
  • , P. P. Donohue
  • , M. A. Todd
  • , R. W. Whatmore

Research output: Other outputpeer-review

Abstract

The phase transformations from amorphous to pyrochlore to perovskite in lead scandium tantalate (PST) thin films during rapid thermal annealing process (RTA) have been studied. Volume fractions for pyrochlore and perovskite were obtained from their respective X-ray diffraction intensities. Two models assuming the starting phase being pure amorphous or pyrochlore were analysed in detail. Equations have been derived and numerical calculation used to simulate the volume fractions for each phase as functions of annealing time. Transformation parameters k and n were obtained by comparing experiment with simulation using a least-squares curve fitting technique.

Original languageEnglish
Number of pages8
Volume60
DOIs
Publication statusPublished - 2004

Publication series

NameIntegrated Ferroelectrics
PublisherTaylor and Francis Ltd.
ISSN (Print)1058-4587

Keywords

  • Kinetics
  • Phase transformations
  • PST
  • Pyroelectric

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