Influence of Bi on magnetic properties of Dy3Fe5O12 garnet film

被引：9
|
作者：
Gu, BX [1 ]
Zhang, HY [1 ]
Wang, H [1 ]
Zhai, HR [1 ]
机构：
[1] SOUTHEASTERN UNIV,DEPT PHYS,NANJING 210008,PEOPLES R CHINA
来源：
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 1997年 / 168卷 / 1-2期
基金：
中国国家自然科学基金;
关键词：
garnet; thin film; ferromagnetic resonance; substitution effect;
D O I：
10.1016/S0304-8853(96)00696-8
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Bi2DyFe5O12 garnet films were prepared by crystallization of sputtered amorphous films. The magnetic properties and influence of Bi were studied. The substitution of Bi results in the decrease of low-temperature magnetization and compensation temperature and increase of room-temperature magnetization and Curie temperature. This behaviour may be attributed to the influence of the Bi3+ ions on the superexchange interaction and to the spin polarization of Bi3+ ions. It was found that the bismuth enhances the effective magnetic moment of Dy3+ ions.
引用
收藏
页码：31 / 34
页数：4
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