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Structural phase transformation and phase boundary/stability studies of field-cooled Pb(Mg1/3Nb2/3O3)–32%PbTiO3 crystals

J. Appl. Phys. 97, 094101 (2005); doi:10.1063/1.1883723

Published 14 April 2005

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Hu Cao, Feiming Bai, Jiefang Li, and D. Viehland
Department of Materials Science and Engineering, Virginia Tech, Blacksburg, Virginia 24061

Guangyong Xu, H. Hiraka, and G. Shirane
Department of Physics, Brookhaven National Laboratory, Upton, New York 11973
Structural phase transformations in (001)-oriented (1–x)Pb(Mg1/3Nb2/3O3)–32%PbTiO3 crystals have been investigated by x-ray diffraction. A C-->T-->MC sequence was observed in both the field-cooled and zero-field-cooled conditions. Most interestingly, an anomalous increase in the C-->T phase boundary with increasing field has been observed, which is seemingly a common characteristic of crystals whose compositions are in the vicinity of the morphotropic phase boundary, irrespective of the width of the T and MC phase regions. ©2005 American Institute of Physics
History: Received 24 January 2005; accepted 9 February 2005; published 14 April 2005
Permalink: http://link.aip.org/link/?JAPIAU/97/094101/1
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KEYWORDS and PACS

Keywords
PACS
  • 77.84.Dy
    Dielectric, piezoelectric, and ferroelectric niobates, titanates, tantalates, PZT ceramics, etc
  • 64.70.Kb
    Solid–solid transitions
  • 77.22.Ch
    Permittivity (dielectric function)
  • YEAR: 2005

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ISSN:
0021-8979 (print)   1089-7550 (online)
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