Multiferroic, Optical, and Fatigue Behavior of BiFeO3 Thin Films with a Sintering Aid of CuO

被引：3

作者：

Wu, Jiagang ^{[1
]}

Wang, John ^{[1
]}

机构：

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

来源：

ELECTROCHEMICAL AND SOLID STATE LETTERS | 2010年 / 13卷 / 08期

关键词：

bismuth compounds; copper compounds; dielectric polarisation; energy gap; fatigue; ferroelectric Curie temperature; ferroelectric thin films; multiferroics; sintering; sputter deposition; texture;

D O I：

10.1149/1.3443221

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

The BiFeO3 (BFO) thin film was doped with CuO (1 mol %), leading to the (100) orientation when deposited on SrRuO3/LaAlO3(100) substrate by off-axis radio-frequency magnetic sputtering. The CuO-doped BFO thin film retains a high Curie temperature (similar to 820 degrees C) and possesses a direct bandgap (2.75 eV). A giant remnant polarization of 2P(r) similar to 184.7 mu C/cm(2) and good fatigue endurance are also shown for the CuO-doped BFO thin film. Its frequency dependence of fatigue endurance was correlated with the impedance analysis, confirming the involvement of oxygen vacancies. (C) 2010 The Electrochemical Society. [DOI: 10.1149/1.3443221] All rights reserved.

引用

页码：G68 / G70

页数：3

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