Enhanced electrical polarization and ferromagnetic moment in a multiferroic BiFeO3/Bi3.25Sm0.75Ti2.98V0.02O12 double-layered thin film

被引：72

作者：

Cheng, ZX

Wang, XL

Kannan, CV

Ozawa, K

Kimura, H

Nishida, T

Zhang, SJ

Shrout, TR

机构：

[1] Univ Wollongong, Inst Supercond & Elect Mat, Spintrop & Elect Mat Grp, Wollongong, NSW 2522, Australia

[2] Natl Inst Mat Sci, Tsukuba, Ibaraki 3050047, Japan

[3] Nara Inst Sci & Technol, Grad Sch Mat Sci, Ikoma, Nara 6300101, Japan

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

来源：

APPLIED PHYSICS LETTERS | 2006年 / 88卷 / 13期

基金：

澳大利亚研究理事会; 日本学术振兴会;

关键词：

D O I：

10.1063/1.2191732

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Multiferroic BiFeO3/Bi3.25Sm0.75Ti2.98V0.02O12 double-layered thin films on Pt/Ti/SiO2/Si were fabricated using the pulsed-laser deposition technique. The films showed greatly enhanced ferroelectric and ferromagnetic properties. The values of the remanent polarization (2P(r)) and coercive field (E-c) were 71.8 mu C/cm(2) and 148 kV/cm at a maximum applied voltage of 13 V, respectively. The value of the magnetic moment was found to be 17.5 emu/cm(3). The enhancement of the polarization originated from the BiFeO3 with Bi3.25Sm0.75Ti2.98V0.02O12 working as a barrier layer. The enhancement of the magnetization is from the structural distortion of BiFeO3, due to partial epitaxial growth on the bismuth titanate surface. (c) 2006 American Institute of Physics.

引用

页数：3

共 18 条

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