Polar and chemical order in relation with morphotropic phase boundaries and relaxor behaviour in bulk and nanostructured PSN-PT

被引：10

作者：

Haumont, R ^{[1
]}

Carreaud, J

Gemeiner, P

Dkhil, B

Malibert, C

Al-Barakaty, A

Bellaiche, L

Kiat, JM

机构：

[1] Ecole Cent Paris, Lab Struct Proprietes & Modelisat Solides, CNRS, UMR 8580, F-92295 Chatenay Malabry, France

[2] CE Saclay, CNRS, UMR 12, Lab Leon Brillouin f, F-91991 Gif Sur Yvette, France

[3] Univ Evry, Lab Etud Milieux Nanometr, F-91000 Evry Essonne, France

[4] Univ Arkansas, Dept Phys, Fayetteville, AR 72701 USA

来源：

PHASE TRANSITIONS | 2006年 / 79卷 / 1-2期

关键词：

monoclinic phase; PSN-PT system; nanostructure;

D O I：

10.1080/01411590600555917

中图分类号：

O7 [晶体学];

学科分类号：

0702 ; 070205 ; 0703 ; 080501 ;

摘要：

We have recently evidenced the existence of a complex path of polarisation rotation via two monoclinic phases in the giant-piezoelectric materials PSN PT that is similar to the PMN-PT system. In this article we have presented the state of knowledge on the PSN-PT system and have given new results showing the close connection between the local inhomogeneous chemical order of Sc/Nb/Ti cations and the stability of different ferroelectric phases. The notion of morphotropic phase boundaries is discussed in relation with the gradual appearance of long-range polar order with increasing Ti content in PSN-PT. Comparison with the films and nanopowders/ceramics has also been made.

引用

页码：123 / 134

页数：12

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