Electromechanical and magnetic properties of BiFeO3-LaFeO3-CaTiO3 ceramics near the rhombohedral-orthorhombic phase boundary

被引：24

作者：

Karpinsky, D. V. ^{[1
,2
]}

Troyanchuk, I. O. ^{[2
]}

Sikolenko, V. ^{[3
,4
]}

Efimov, V. ^{[4
]}

Kholkin, A. L. ^{[1
]}

机构：

[1] Univ Aveiro, Dept Ceram & Glass Engn, CICECO, P-3810193 Aveiro, Portugal

[2] NAS Belarus, Sci Pract Mat Res Ctr, Minsk 220072, BELARUS

[3] Karlsruhe Inst Technol, DE-76131 Karlsruhe, Germany

[4] Joint Inst Nucl Res, RU-141980 Dubna, Russia

来源：

JOURNAL OF APPLIED PHYSICS | 2013年 / 113卷 / 18期

关键词：

PIEZOELECTRIC PROPERTIES; STRUCTURAL TRANSFORMATION; THIN-FILMS; TRANSITION; BEHAVIOR; TITANATE;

D O I：

10.1063/1.4801960

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

BiFeO3-LaFeO3-CaTiO3 ceramics have been studied by X-ray diffraction, magnetization measurements, and piezoresponse force microscopy (PFM). The compositional ranges of the polar, antipolar, and non-polar phases have been estimated. PFM measurements testify gradual decrease of piezoelectric response in Bi(0.85-x)La(0.15)CaxFe(1-x)Ti(x)O(3) system with Ca/Ti content increase, except a narrow concentration region near polar-antipolar phase boundary where piezoelectric signal shows maximum value. It is found that increase of dopant concentration leads to apparent decrease of the off-center Bi-O displacement and, consequently, causes a reduction of piezoelectric response. It is concluded that notable remanent magnetization in polar and non-polar structural phases is a result of the Dzyaloshinsky-Moria interaction. (C) 2013 AIP Publishing LLC

引用

页数：6

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