Phase transitions in disordered lead iron niobate: X-ray and synchrotron radiation diffraction experiments

被引：117

作者：

Bonny, V ^{[1
]}

Bonin, M ^{[1
]}

Sciau, P ^{[1
]}

Schenk, KJ ^{[1
]}

Chapuis, G ^{[1
]}

机构：

[1] ECOLE CENT PARIS,CHIM PHYS LAB,F-92295 CHATENAY MALABR,FRANCE

来源：

SOLID STATE COMMUNICATIONS | 1997年 / 102卷 / 05期

关键词：

ferroelectrics; X-ray scattering; phase transitions; synchrotron radiation;

D O I：

10.1016/S0038-1098(97)00022-7

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Diffraction above room temperature, on powders and crystals of Pb(Fe0.5Nb0.5)O-3, using X-rays and synchrotron radiation, led to a novel and consistent picture of the symmetry of the phases in this disordered perovskite. The compound is a monoclinic ferroelectric at 293 K, undergoes a structural transition to another ferroelectric, tetragonal state at about 355 K and finally transforms into a cubic form at approximately 376 K. (C) 1997 Elsevier Science Ltd.

引用

页码：347 / 352

页数：6

共 23 条

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WATANABE, T
KOHN, K
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[22] THE DIFFUSE PHASE-TRANSITION IN PB(FE1/2NB1/2)O-3 CERAMICS SYNTHESIZED THROUGH THE USE OF ALKOXIDES
YASUDA, N
UEDA, Y
[J]. JOURNAL OF PHYSICS-CONDENSED MATTER, 1989, 1 (02) : 497 - 500
[23] ELECTRICAL AND ELECTROMECHANICAL PROPERTIES OF HOT-PRESSED PB(FE1/2NB1/2)O3 FERROELECTRIC CERAMICS
YOKOSUKA, M
[J]. JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS, 1993, 32 (3A): : 1142 - 1146

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