期刊
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
卷 393, 期 -, 页码 253-259出版社
ELSEVIER
DOI: 10.1016/j.jmmm.2015.05.076
关键词
Barium hexaferrites; Neutron diffraction; Vibration magnetome try; Crystal and magnetic structures
资金
- Belarusian Republican Foundation for Fundamental Research [F15D-003]
- Joint Institute for Nuclear Research [04-4-1121-2015/2017]
The investigations of the crystal and magnetic structure by powder neutron diffractometry as well as the magnetic properties by vibration sample magnetometry for the BaFe12-xAlxO19 (x=0.1-1.2) solid solutions have been performed at different temperatures and magnetic fields. The atomic coordinates and lattice parameters have been Rietveld refined. The lnvar effect has been observed in low temperature range (from 150 to 4.2 K). It was explained by the thermal oscillation anharmonicity of atoms. The increase of microstress value with decreasing temperature has been defined from Rietveld refinement. The Curie temperature and change of total magnetic moment per formula unit have been defined for all the compositions of the barium hexaferrites BaFe12-xAlxO19 (x=0.1-1.2) solid solutions. The magnetic structure model is proposed. The most likely reasons and the mechanism of magnetic structure formation are discussed. (C) 2015 Elsevier B.V. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据