The effect of annealing atmosphere on magnetoelectric coupling of the La0.7Sr0.3MnO3/BaTiO3 layered heterostructure

被引：9

作者：

Li, Tingxian ^{[1
]}

Wang, Hongwei ^{[2
]}

Ju, Lin ^{[1
]}

Tang, Zhenjie ^{[1
]}

Ma, Dongwei ^{[1
]}

Li, Kuoshe ^{[3
]}

机构：

[1] Anyang Normal Univ, Coll Phys & Elect Engn, Anyang 455002, Peoples R China

[2] Anyang Normal Univ, Sch Math & Stat, Anyang 455002, Peoples R China

[3] Natl Engn Res Cent Rare Earth Mat, Beijing 100088, Peoples R China

来源：

PHYSICA B-CONDENSED MATTER | 2015年 / 475卷

基金：

中国国家自然科学基金;

关键词：

Multiferroic materials; Pulsed laser deposition; Annealing; Magnetoelectric coupling; THIN-FILMS;

D O I：

10.1016/j.physb.2015.06.019

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

The epitaxial La0.7Sr0.3MnO3/BaTiO3 (LSMO/BTO) layered heterostructure was grown on (001) oriented LaAlO3 single-ci:ystal substrate by pulsed laser deposition. Our results showed that the in-situ annealing process in oxygen made the LSMO/BTO interface possess higher oxygen content than that of the one annealing in vacuum, which leaded to the LSMO film presented higher magnetic permeability and higher saturated magnetization. The P-E hystersis loop only could be detected in the sample annealing in oxygen. The ME voltage coefficient of the LSMO/BTO heterostructure annealing in oxygen was higher than that of the one annealing in vacuum, which suggested a more effective ME coupling. It was a combined effect of the two main ME coupling mechanisms, including strain mediation, and polarized carrier mediation. (C) 2015 Elsevier B.V. All rights reserved.

引用

页码：32 / 34

页数：3

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