Effect of tetragonal distortion on ferroelectric domain switching: A case study on La-doped BiFeO3-PbTiO3 ceramics

被引：118

作者：

Leist, Thorsten ^{[1
]}

Granzow, Torsten ^{[1
]}

Jo, Wook ^{[1
]}

Roedel, Juergen ^{[1
]}

机构：

[1] Tech Univ Darmstadt, Inst Mat Sci, D-64287 Darmstadt, Germany

来源：

JOURNAL OF APPLIED PHYSICS | 2010年 / 108卷 / 01期

关键词：

MORPHOTROPIC PHASE-BOUNDARY; ZIRCONATE-TITANATE CERAMICS; PIEZOELECTRIC CERAMICS; THIN-FILMS; PZT; BEHAVIOR; STRESS; GROWTH; SYSTEM; STRAIN;

D O I：

10.1063/1.3445771

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The ferroelectric and piezoelectric properties of (1-x)BiFeO3-xPbTiO(3) (BF-PT) ceramics were investigated as a function of tetragonal distortion. The latter was adjusted by employing La-doping (0-30 at %) while keeping the material near the morphotropic phase boundary by varying x between 0.35 and 0.46. This allows changing the c/a ratio of tetragonal BF-PT in the range from 1.10-1.01 and consequently alters the level of compatibility stresses. It was found that the c/a ratio has a significant influence on domain switching as inferred from electric field induced polarization, strain hysteresis, and Rayleigh measurements. Specifically, a threshold c/a ratio of about 1.045 was identified below which the electric field induced domain mobility increases sharply. (C) 2010 American Institute of Physics. [doi: 10.1063/1.3445771]

引用

页数：6

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