The regulation of magnetoelectric coupling and magnetic exchange bias effects in La doped Bi5Ti3FeO15 multiferroic films

被引：14

作者：

Alyeksyei, Ariunbayasgalan ^{[1
]}

Bai, Yulong ^{[1
]}

Lu, Qingshan ^{[1
]}

Zhao, Shifeng ^{[1
]}

机构：

[1] Inner Mongolia Univ, Inner Mongolia Key Lab Nanosci & Nanotechnol, Hohhot 010021, Peoples R China

来源：

MATERIALS LETTERS | 2018年 / 213卷

基金：

中国国家自然科学基金;

关键词：

Magnetic materials; Dielectrics; Ferroelectrics; Magnetoelectric coupling; Exchange bias effect; DIELECTRIC-PROPERTIES; NANOFIBERS; BEHAVIORS;

D O I：

10.1016/j.matlet.2017.11.031

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

La doped Bi5Ti3FeO15 (BTFO) multiferroic films with various doping concentration were synthesized by chemical solution deposition method. The structure, ferroelectric, magnetic properties, and magnetoelectric coupling effect were systemically investigated. Room temperature magnetoelectric effect was obtained. And the magnetoelectric coupling and magnetic exchange bias effects are regulated by the doping concentration of La. Such regulation originates from the evolution of magnetic structure derived from doping rare earth La. The coexistence of ferromagnetic (FM) and antiferromagnetic (AFM) orders can be controlled by the doping concentration of La. Thus, the superexchange interaction between FM and AFM orders was enhanced strongly, which contributes to the strong magnetoelectric coupling effect. This work provides an avenue on regulating the magnetic structure and magnetoelectric coupling effects. (C) 2017 Elsevier B.V. All rights reserved.

引用

页码：114 / 117

页数：4

共 20 条

[1] Photovoltaic Behaviors Regulated by Band-Gap and Bipolar Electrical Cycling in Holmium-Doped Bi5Ti3FeO15 Ferroelectric Films [J].