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Title: Influence of short-range and long-range order on the evolution of the morphotropic phase boundary in Pb Zr[sub 1−x]Ti[sub x] O₃
Authors: Glazer, A. M.
Thomas, P. A.
Baba-Kishi, K. Z.
Pang, Geoffrey Kin-hung
Tai, Cheuk-wai
Subjects: Electron diffraction
Molecular model
Phase transition
Issue Date: 1-Nov-2004
Publisher: American Physical Society
Source: Physical review B, condensed matter and materials physics, 1 Nov. 2004, v. 70, no. 18, 184123, p. 1-9.
Abstract: The local structures of rhombohedral, monoclinic, and tetragonal phases across the morphotropic phase boundary (MPB) of Pb(Zr[sub 1−x]Ti[sub x])O₃ are discussed in terms of the progression from short-range to long-range and back to short-range structural order. It is shown that, provided one considers the structures on a suitably small length scale, all three phases can be considered to be monoclinic at the local level and that there need not be any discrete phase boundaries across the MPB. Electron diffraction experiments showing significant variations in diffuse streaking, illustrating the progression from short-range to long-range order, are presented in support of this model. It is suggested that it is the change in the range of structural order that plays the most important role in the increase in electrical and electromechanical properties around the MPB.
Rights: Physical Review B © 2004 The American Physical Society. The Journal's web site is located at
Type: Journal/Magazine Article
DOI: 10.1103/PhysRevB.70.184123
ISSN: 1098-0121 (print)
1550-235X (online)
Appears in Collections:AP Journal/Magazine Articles

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