The magnetoelectric properties of La0.7Sr0.3MnO3/BaTiO3 bilayers with various orientations

被引:25
作者
Li, Tingxian [1 ]
Zhang, Feipeng [2 ]
Fang, Hui [3 ]
Li, Kuoshe [4 ]
Yu, Fengjun [1 ]
机构
[1] Anyang Normal Univ, Coll Phys & Elect Engn, Anyang 455002, Peoples R China
[2] Henan Univ Urban Construct, Dept Math & Phys, Pingdingshan 467036, Peoples R China
[3] Guangxi Normal Univ Nationalities, Dept Phys & Elect Engn, Chongzuo 532200, Peoples R China
[4] Grirem Adv Mat Co Ltd, Gen Res Inst Nonferrous Met, Natl Engn Res Cent Rare Earth Mat, Beijing 100088, Peoples R China
基金
中国国家自然科学基金;
关键词
Magnetoelectric effect; Multiferroics; Pulsed laser deposition; Film orientation; THIN-FILMS; MANGANITES; BEHAVIOR;
D O I
10.1016/j.jallcom.2013.01.143
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 epitaxial La0.7Sr0.3MnO3/BaTiO3 bilayers were deposited on (001), (110) and (111) LaAlO3 substrates by pulsed laser deposition technique. All of the bilayers presented coherent ferromagnetic and ferroelectric properties. Furthermore, a strong magnetoelectric (ME) effect at room temperature was approved, which strongly correlated to the film orientation. The ME voltage coefficients for (001), (110) and (111) oriented bilayers were around 140 mV/cm Oe, 105 mV/cm Oe, and 120 mV/cm Oe, respectively. These values were at least one order of magnitude higher than previous reported results, which mainly related to the good interface quality of La0.7Sr0.3MnO3/BaTiO3 bilayers and the small dielectric constant of BaTiO3 film. (C) 2013 Elsevier B.V. All rights reserved.
引用
收藏
页码:167 / 170
页数:4
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