Effects of boron contents on magnetic properties of Fe-Co-B thin films
Effects of boron contents on magnetic properties of Fe-Co-B thin films
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DOI：
10.1109/tmag.2004.832129
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发表时间：
2004-08
影响因子：
2.1
通讯作者：
Inyoung Kim;Jongryoul Kim;Ki Hyeon Kim;M. Yamaguchi
中科院分区：
文献类型：
--
作者：
Inyoung Kim;Jongryoul Kim;Ki Hyeon Kim;M. Yamaguchi
通过微观结构分析，研究了B对Fe/sub7/Co/sub3/基薄膜磁性能和高频特性的影响。结果表明，在饱和磁化强度损失不大的情况下，添加B能有效地提高各向异性场和电阻率，降低矫顽力。这些增强作用与颗粒尺寸、颗粒形态和择优取向密切相关。结果表明，/SPL sim/0.5/spl deg/的Fe/sub55/Co/sub28/B/sub17/薄膜的铁磁共振频率为3.3 GHz，线性有效磁导率为/spl sim/350，最高可达2 GHz。
Effects of B on the magnetic properties and high frequency characteristics of the Fe/sub 7/Co/sub 3/ based thin films were investigated through the microstructural analysis. It was found that B addition was very effective in increasing anisotropy field and resistivity and in decreasing coercivity without much loss of saturation magnetization. These enhancements were shown to be strongly related to grain size, grain morphology and preferred orientations. As a result, a Fe/sub 55/Co/sub 28/B/sub 17/ film with small dispersion angle of /spl sim/0.5/spl deg/ showed the ferromagnetic resonance frequency of 3.3 GHz and a linear effective permeability of /spl sim/350 up to 2 GHz.