LONG-TIME PRESENT TWEEDLIKE PRECURSORS AND PARAELECTRIC CLUSTERS IN FERROELECTRICS CONTAINING STRONG QUENCHED RANDOMNESS

被引：105

作者：

VIEHLAND, D ^{[1
]}

KIM, MC ^{[1
]}

XU, Z ^{[1
]}

LI, JF ^{[1
]}

机构：

[1] UNIV ILLINOIS,MAT RES LAB,URBANA,IL 61801

来源：

APPLIED PHYSICS LETTERS | 1995年 / 67卷 / 17期

关键词：

D O I：

10.1063/1.114611

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Transmission electron microscopy studies of the (1 - x)Pb(Mg1/3Nb2/3)O-3-(x)PbTiO3 [PMN-PT (1-x)/x] crystalline solution have been performed for x = 0.1, 0.2, 0.35, and 0.60. Bright-field imaging has revealed a common sequence of domainlike states with increasing x. Normal micron-sized ferroelectric domains were found for x>0.40. Tweedlike structures were found for x similar to 0.35. These tweedlike structures are similar to those previously reported in premartensitic states. Paraelectric clusters were found for x<0.30. The paraelectric cluster state was characterized by the lack of self-assembly amongst embryos and the presence of relaxer behavior in the macroscopic response characteristics. The composition PMN-PT 65/35 was then modified with La for a detailed study of the transition between the tweedlike precursor and paraelectric cluster states with increasing impurity content. (C) 1995 American Institute of Physics.

引用

页码：2471 / 2473

页数：3

共 25 条

[1] Overview of the origin of tweed texture [J].