Effect of magnetic annealing on magnetization of BiFeO3 ceramics

被引：6

作者：

Luo, Wanju ^{[1
]}

Zhang, Shuxia ^{[1
]}

Wang, Dongliang ^{[1
]}

Ma, Yanwei ^{[1
]}

Wang, Fangwei ^{[2
]}

Watanabe, Kazuo ^{[3
]}

机构：

[1] Chinese Acad Sci, Inst Elect Engn, Lab Appl Superconduct, Beijing 100190, Peoples R China

[2] Chinese Acad Sci, Inst Phys, Beijing Natl Lab Condensed Matter Phys, Beijing 100190, Peoples R China

[3] Tohoku Univ, Inst Mat Res, High Field Lab Superconducting Mat, Sendai, Miyagi 9808577, Japan

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2012年 / 324卷 / 16期

基金：

中国博士后科学基金;

关键词：

Multiferroic material; BiFeO3; Magnetic annealing; Magnetization; FERROMAGNETISM; ENHANCEMENT; FILMS;

D O I：

10.1016/j.jmmm.2012.03.010

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The effect of magnetic annealing treatment on the magnetization of multiferroic BiFeO3 was studied systematically. A series of pelletized nano-sized BiFeO3 powders were annealed at high temperature under different magnetic fields. Typical ferromagnetic hysteresis loops were obtained at room temperature of the ceramics which were derived from ferromagnetic BiFeO3 precursors. On the other hand, antiferromagnetic behaviors were observed in other samples synthesized from nonmagnetic precursors. The enhanced magnetic properties were ascribed to the magnetic anisotropy which was induced by the strong magnetic fields. This work indicates that the strong magnetic annealing method is an alternative approach to tuning the magnetic properties of high performance multiferroic materials with canted antiferromagnetic ordering. (C) 2012 Elsevier B.V. All rights reserved.

引用

页码：2458 / 2462

页数：5

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