Room temperature multiferroic properties of single-phase (Bi0.9La0.1)FeO3-Ba(Fe0.5Nb0.5)O3 solid solution ceramics

被引：37
作者：
Paik, Hanjong [1 ]
Hwang, Hosung
No, Kwangsoo
Kwon, Seunghwa
Cann, David P.
机构：
[1] Korea Adv Inst Sci & Technol, Dept Mat Sci & Engn, Taejon 305701, South Korea
[2] Oregon State Univ, Dept Mech Engn, Fac Mat Sci, Corvallis, OR 97331 USA
来源：
APPLIED PHYSICS LETTERS | 2007年 / 90卷 / 04期
基金：
新加坡国家研究基金会;
关键词：
D O I：
10.1063/1.2434182
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
The crystal structure and multiferroic properties of single-phase (Bi0.9La0.1)FeO3-Ba(Fe0.5Nb0.5)O-3 ceramics were investigated. The rhombohedral-type structure of 1.0(Bi0.9La0.1)FeO3) was transformed to a monoclinic-type structure for the 0.5(Bi0.9La0.1)FeO3-0.5Ba(Fe0.5Nb0.5)O-3) composition. It shows the coexistence of ferroelectricity and magnetism at room temperature, represented by a high dielectric constant with ferroelectric hysteresis and clear magnetic hysteresis behavior. The authors propose that the solid solution of A and B site cations according to their ionic radii and valence state stabilized the spontaneous polarization and magnetization at room temperature. (c) 2007 American Institute of Physics.
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