The effect of interface oxygen content on magnetoelectric effect of epitaxial La0.7Sr0.3MnO3/BaTiO3 bilayer

被引：0
作者：
Li Tingxian [1 ]
Li Kuoshe [2 ]
机构：
[1] Anyang Normal Univ, Coll Phys & Elect Engn, Anyang 455002, Peoples R China
[2] Grirem Adv Mat Co Ltd, Gen Res Inst Nonferrous Met, Natl Engn Res Cent Rare Earth Mat, Beijing 100088, Peoples R China
来源：
JOURNAL OF APPLIED PHYSICS | 2014年 / 115卷 / 04期
基金：
中国国家自然科学基金;
关键词：
THIN-FILMS; DEPENDENCE;
D O I：
10.1063/1.4863459
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
The epitaxial La0.7Sr0.3MnO3/BaTiO3 (LSMO/BTO) bilayer films are grown on (001) oriented LaAlO3 substrate by pulsed laser deposition technique. The oxygen-rich interface is obtained through in-situ annealing process in oxygen, and the oxygen-deficient interface is obtained without the annealing process. The results show that the ferromagnetic properties of the LSMO film and the magnetoelectric effect (ME) of the bilayer films strongly correlate to the oxygen content at the interface of LSMO/BTO. The saturated magnetization and the ME voltage coefficient of the oxygen-rich bilayer film are higher than that of oxygen-deficient one. It suggests a more effective ME coupling at the LSMO/BTO interface, which are generated through not only the interface strain but also the spin polarized carriers. (C) 2014 AIP Publishing LLC.
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页数：4
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