Compositionally graded bismuth ferrite thin films

被引：5

作者：

Wu, Jiagang ^{[1
,2
]}

Wang, John ^{[2
]}

Xiao, Dingquan ^{[1
]}

Zhu, Jianguo ^{[1
]}

机构：

[1] Sichuan Univ, Dept Mat Sci, Chengdu 641402, Peoples R China

[2] Natl Univ Singapore, Dept Mat Sci & Engn, Singapore 117574, Singapore

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2011年 / 509卷 / 35期

关键词：

Compositionally graded thin film; Bismuth ferrite; Multiferroic properties; Fatigue behavior; BIFEO3; POLARIZATION; FATIGUE; HETEROSTRUCTURES; MECHANISM;

D O I：

10.1016/j.jallcom.2011.05.076

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The compositionally graded (Bi(0.92)La(0.08))(Fe(1-x)Zn(x))O(3) (x=0.03, 0.07, and 0.13) thin film was layer-by-layer grown on Pt/Ti/SiO(2)/Si(1 0 0) substrates without any buffer layers by radio frequency sputtering. This thin film has a pure polycrystalline perovskite structure with random orientation, a dense microstructure, and a low leakage current density. A large remanent polarization of 2P(r)similar to 142.00 mu C/cm(2) and a good magnetic behavior of 2M(s)similar to 27.52 emu/cm(3) are demonstrated in such a thin film. The applied electric fields and measurement frequencies strongly affect its fatigue endurance, that is, its fatigue endurance was degraded with decreasing frequencies and electric fields. (C) 2011 Elsevier B.V. All rights reserved.

引用

页码：L319 / L323

页数：5

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