Electric field induced phase transition and domain structure evolution in (Pb, La)(Zr, Sn, Ti)O3 single crystal

被引：34

作者：

Gao, Jinghan ^{[1
]}

Li, Qiang ^{[1
]}

Li, Yuanyuan ^{[1
]}

Zhuo, Fangping ^{[1
]}

Yan, Qingfeng ^{[1
]}

Cao, Wenwu ^{[2
,3
]}

Xi, Xiaoqing ^{[4
]}

Zhang, Yiling ^{[4
]}

Chu, Xiangcheng ^{[4
]}

机构：

[1] Tsinghua Univ, Dept Chem, Beijing 100084, Peoples R China

[2] Harbin Inst Technol, Condensed Matter Sci & Technol Inst, Harbin 150080, Heilongjiang, Peoples R China

[3] Penn State Univ, Mat Res Inst, University Pk, PA 16802 USA

[4] Tsinghua Univ, State Key Lab New Ceram & Fine Proc, Beijing 100084, Peoples R China

来源：

APPLIED PHYSICS LETTERS | 2015年 / 107卷 / 07期

基金：

中国国家自然科学基金;

关键词：

FERROELECTRIC PHASE; BEHAVIOR; PEROVSKITE; CERAMICS; ORIGIN; STRAIN;

D O I：

10.1063/1.4929463

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Antiferroelectric (Pb, La)(Zr, Sn, Ti)O-3 (PLZST) single crystals with composition in the vicinity of morphotropic phase boundary have been grown and studied. From electric measurements, Raman study, and observation of domain structures, we found an electric field induced antiferroelectric to ferroelectric phase transition accompanied with fifteen times of strain difference. After this phase transition, the metastable ferroelectric phase (FEin) is preserved with soften of A(1)(TO1) mode and increase of long-range force. Coexistence of tetragonal (T) and rhombohedral (R) domains has been observed in virgin sample. Electric field induced T to R phase transition is verified by both extinction angle and domain morphology changes. Clamping "polar" structure formed by the embedded R phase would contribute to increase of long-range force. The remarkable strain difference accompany with induced phase transition makes the PLZST single crystal a promising candidate for electric switch and actuator applications. (C) 2015 AIP Publishing LLC.

引用

页数：5

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