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Morphotropic phase boundaries in (BiScO3)1-x(PbTiO3)x (0.60<x<0.75) and their relation to chemical composition and polar order

被引：60
作者：
Chaigneau, J. [1 ]
Kiat, J. M.
Malibert, C.
Bogicevic, C.
机构：
[1] Ecole Cent Paris, UMR 8580, CNRS, Lab Struct Proprietes & Modelisat Solides, F-92295 Chatenay Malabry, France
[2] CE Saclay, CNRS, UMR 12, Lab Leon Brillouin, F-91991 Gif Sur Yvette, France
来源：
PHYSICAL REVIEW B | 2007年 / 76卷 / 09期
关键词：
D O I：
10.1103/PhysRevB.76.094111
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
We have performed a structural study of the morphotropic phase boundary system (1-x)BiScO3-xPbTiO3 in which both A and B sites of the perovskite are randomly occupied. A M-A monoclinic phase coexisting with a tetragonal phase has been evidenced for concentration 0.60 < x < 0.70. No evidence of local cations ordering nor chemical inhomogeneity has been found. Taking into account data of Eitel [Jpn. J. Appl. Phys., Part 1 40, 5999 (2001); Jpn. J. Appl. Phys. 41, 2099 (2002)] and our results, a global phase diagram has been drawn. This phase diagram reveals some similarities with that of lead zirconate titanate. The results are discussed in relation with previous works in morphotropic phase boundary systems.
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页数：7
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