Structural Heterogeneity and Diffuse Scattering in Morphotropic Lead Zirconate-Titanate Single Crystals

R. G. Burkovsky, Yu. A. Bronwald, A. V. Filimonov, A. I. Rudskoy, D. Chernyshov, A. Bosak, J. Hlinka, X. Long, Z.-G. Ye, and S. B. Vakhrushev
Phys. Rev. Lett. 109, 097603 – Published 29 August 2012

Abstract

Complementary diffuse and inelastic synchrotron x-ray scattering measurements of lead zirconate-titanate single crystals with composition near the morphotropic phase boundary (x=0.475) are reported. In the temperature range 293K<T<400K a highly anisotropic quasielastic diffuse scattering is observed. Above 400 K this scattering disappears. Its main features can be reproduced by the model of inhomogeneous lattice deformations caused by inclusions of a tetragonal phase into a rhombohedral or monoclinic phase. This observation supports the idea that PZT at its morphotropic phase boundary is essentially structurally inhomogeneous.

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  • Received 27 April 2012

DOI:https://doi.org/10.1103/PhysRevLett.109.097603

© 2012 American Physical Society

Authors & Affiliations

R. G. Burkovsky1,2,*, Yu. A. Bronwald1, A. V. Filimonov1, A. I. Rudskoy1, D. Chernyshov3, A. Bosak2, J. Hlinka4, X. Long5, Z.-G. Ye5, and S. B. Vakhrushev6,1

  • 1St. Petersburg State Politekhnical University, 29 Politekhnicheskaya, 195251, St.-Petersburg, Russia
  • 2European Synchrotron Radiation Facility, BP 220, F-38043 Grenoble Cedex, France
  • 3Swiss-Norwegian Beamlines at ESRF, BP 220, F-38043 Grenoble Cedex, France
  • 4Institute of Physics, Academy of Sciences of the Czech Republic, Na Slovance 2, 182 21 Prague 8, Czech Republic
  • 5Department of Chemistry and 4D LABS, Simon Fraser University, Burnaby, British Columbia, V5A 1S6 Canada
  • 6Ioffe Phys.-Tech. Institute, 26 Politekhnicheskaya, 194021, St.-Petersburg, Russia

  • *rg.burkovsky@mail.ioffe.ru

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Issue

Vol. 109, Iss. 9 — 31 August 2012

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