Structural and electrical characterization of lead metaniobate thin films deposited by pulsed laser ablation

被引：3

作者：

Cardoso, F. ^{[1
]}

Almeida, B. G. ^{[1
]}

Caldelas, P. ^{[1
]}

Mendes, J. A. ^{[1
]}

Barbosa, J. ^{[1
]}

机构：

[1] Univ Minho, Dept Fis, P-4710057 Braga, Portugal

来源：

FERROELECTRICS | 2006年 / 335卷

关键词：

lead metaniobate; structural properties; dielectric properties;

D O I：

10.1080/00150190600691379

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Lead niobate thin films have been prepared by laser ablation, at different substrate temperatures (T-dep) and with different oxygen pressures (pO(2)). For low deposition temperatures the films presented a rhombohedric-PbNb2O6 structural phase, with hysteresis cycles characteristic of a paraelectric. As T dep increased the films started to develop an orthorhombic-PbNb2O6 structure that appeared at 400 degrees C and remained up to 600 degrees C. For low pO(2) , a mixture of this phase and a lead deficient phase was present in the films. Increasing the oxygen pressure the lead deficient phase was strongly reduced and the films presented only the ferroelectric orthorhombic-PbNb2O6 structural phase.

引用

页码：201 / 209

页数：9

共 17 条

[1] An overview of rapidly prototyped piezoelectric actuators and grain-oriented ceramics [J].