Order and disorder in the relaxor ferroelectric perovskite PbSc1/2Nb1/2O3 (PSN): comparison with simple perovskites BaTiO3 and PbTiO3

被引：204

作者：

Malibert, C

Dkhil, B

Kiat, JM

Durand, D

Berar, JF

SpasojevicdeBire, A

机构：

[1] CENS,CEA,CNRS,LAB LEON BRILLOUIN,F-91191 GIF SUR YVETTE,FRANCE

[2] CTR UNIV PARIS SUD,LURE,CEA,CNRS,F-91405 ORSAY,FRANCE

[3] CNRS,CRISTALLOG LAB,F-3804 GRENOBLE 09,FRANCE

[4] ECOLE CENT PARIS,LAB PHYSICOCHIM MOL & MINERALE,URA 1907 CNRS,F-92295 CHATENAY MALABR,FRANCE

来源：

JOURNAL OF PHYSICS-CONDENSED MATTER | 1997年 / 9卷 / 35期

关键词：

D O I：

10.1088/0953-8984/9/35/022

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

We report a structural evolution analysis of the long-range and local order and disorder of lead scandium niobate PbSc1/2Nb1/2O3 (PSN) down to 10 K, using a combination of neutron and x-ray diffraction on powder and single crystals. The structure of PSN is discussed and compared with those of simple perovskite compounds BaTiO3 and PbTiO3. In PSN the existence of a long-range but still disordered ferroelectric phase, different from those of simple perovskites, is evidenced. The disorder of lead and scandium/niobium atoms on short-, medium-and long-range scales is discussed in connection with the dielectric properties of these materials.

引用

页码：7485 / 7500

页数：16

共 37 条

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