The Role of Magnetoelastic Field Related to Underlayers on Magnetic Properties of FeCo Thin Films

The Role of Magnetoelastic Field Related to Underlayers on Magnetic Properties of FeCo Thin Films
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与底层相关的磁弹性场对 FeCo 薄膜磁性能的作用

DOI:
10.1109/tmag.2012.2198873
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发表时间:
2012-10
影响因子:
2.1
通讯作者:
Dan Wei
Dan Wei
中科院分区:
工程技术4区
文献类型:
--
作者:
Kaiming Zhang;Hongjia Li;Yi Wang;Zhenghua Li;Ying Wang;Jiangwei Cao;Jianmin Bai;Fulin Wei;Dan Wei

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利用微磁模型分析了磁弹性场对FeCo薄膜磁性能的影响。推导了磁弹性能与FeCo与底层间应力的关系式,分析了应力对软磁性能的影响。立方各向异性决定了环的对称性。对于磁弹性场,主项对易磁化轴的磁化率有显著影响,交叉项对难磁化轴的磁化率有显著影响。FeCo薄膜具有良好的面内各向异性,这与较低的和值相对应,可以通过使用某些底层(如Cu,NiFe,CoFe)来获得。非晶晶界的磁化对FeCo薄膜的性能有很大的影响。
In this work, the influence of the magnetoelastic field on the magnetic properties of FeCo thin film is analyzed by the micromagnetic model. Formula of magnetoelastic energy related to the stress between the FeCo and the underlayer are derived to analysis the role of stress on soft magnetic properties. The cubic anisotropy determines the symmetry of the loops. For the magnetoelastic field, the main termhas significant influence on the easy-axis coercivity and the cross termaffects the slope of the hard-axis loop. Good in-plane anisotropy of FeCo thin film, which can be obtained by using certain underlayers (such as Cu, NiFe, CoFe), is corresponding to low value ofand. The magnetizationat amorphous grain boundary has great effect on the properties of FeCo film.
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影响因子: 3.2
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