Orthorhombic-tetragonal phase coexistence and enhanced piezo-response at room temperature in Zr, Sn, and Hf modified BaTiO3

被引：143

作者：

Kalyani, Ajay Kumar ^{[1
]}

Brajesh, Kumar ^{[1
]}

Senyshyn, Anatoliy ^{[2
]}

Ranjan, Rajeev ^{[1
]}

机构：

[1] Indian Inst Sci, Dept Mat Engn, Bangalore 560012, Karnataka, India

[2] Tech Univ Munich, Forsch Neutronenquelle Heinz Maier Leibnitz FRM I, D-85747 Garching, Germany

来源：

APPLIED PHYSICS LETTERS | 2014年 / 104卷 / 25期

关键词：

TRANSITION;

D O I：

10.1063/1.4885516

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The effect of Zr, Hf, and Sn in BaTiO3 has been investigated at close composition intervals in the dilute concentration limit. Detailed structural analysis by x-ray and neutron powder diffraction revealed that merely 2mol. % of Zr, Sn, and Hf stabilizes a coexistence of orthorhombic (Amm2) and tetragonal (P4mm) phases at room temperature. As a consequence, all the three systems show substantial enhancement in the longitudinal piezoelectric coefficient (d(33)), with Sn modification exhibiting the highest value similar to 425 pC/N. (C) 2014 AIP Publishing LLC.

引用

页数：5

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