Influences of Pr and Mn co-substitution on crystallinity and electric properties of BiFeO3 thin films

被引：18
作者：
Kawae, Takeshi [1 ]
Terauchi, Yuki [1 ]
Nakajima, Takashi [2 ]
Okamura, Soichiro [2 ]
Morimoto, Akiharu [1 ]
机构：
[1] Kanazawa Univ, Coll Sci & Engn, Kanazawa, Ishikawa 9201192, Japan
[2] Tokyo Univ Sci, Fac Sci, Dept Appl Phys, Shinjuku Ku, Tokyo 1628601, Japan
来源：
JOURNAL OF THE CERAMIC SOCIETY OF JAPAN | 2010年 / 118卷 / 1380期
关键词：
Pb-free materials; BiFeO3; Pr; Mn; Cosubstitution; Thin films; PLD; REDUCED LEAKAGE CURRENT; DOPED BIFEO3;
D O I：
10.2109/jcersj2.118.652
中图分类号：
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Pr and Mn co-substituted BiFeO3 (BFO) thin films were fabricated on a Pt-coated (100) SrTiO3 substrates by pulsed laser deposition (PLD) method. X-ray diffraction patterns indicated that the formation of impurity phases was suppressed by Pr substitution in the BFO thin films. Furthermore, by combining with small amount of Mn substitution, Pr substitution was effective for reducing the leakage current density. The polarization vs electric field curves showed well-saturated hysteresis loops with measurement frequency of 20 kHz at room temperature. The remnant polarization at a maximum electric field of 1500 kV/cm was approximately 50-70 mu C/cm(2). (C) 2010 The Ceramic Society of Japan. All rights reserved.
引用
收藏
页码：652 / 655
页数：4
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