Simultaneous enhancements of remanence and (BH)max in BaFe12O19/CoFe2O4 nanocomposite powders

被引：61

作者：

Yang, Haibo ^{[1
]}

Liu, Miao ^{[1
]}

Lin, Ying ^{[1
]}

Yang, Yanyan ^{[1
]}

机构：

[1] Shaanxi Univ Sci & Technol, Sch Mat Sci & Engn, Xian 710021, Peoples R China

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2015年 / 631卷

基金：

中国国家自然科学基金;

关键词：

Composite materials; Magnetization; Sol-gel processes; Magnetic measurements; MAGNETIC-PROPERTIES;

D O I：

10.1016/j.jallcom.2015.01.012

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：

Homogeneous BaFe12O19/CoFe2O4 hard/soft magnetic nanocomposite powders were prepared by a one-step sol-gel method. All the nanocomposite powders show single-phase-like magnetic hysteresis loops indicating the existence of the excellent exchange spring phenomena of the hard magnetic phase and soft magnetic phase in the nanocomposite powders. The enhancements of remanence and 10% in (BH)(max) compared with the parent hard ferrite (BaFe12O19) can be achieved. The switching field distribution curves confirm the excellent exchange coupling between the hard and soft magnetic grains. (C) 2015 Elsevier B.V. All rights reserved.

引用

页码：335 / 339

页数：5

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