Permeability and anisotropy dispersion of amorphous soft magnetic films.
Permeability and anisotropy dispersion of amorphous soft magnetic films.
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非晶软磁薄膜的磁导率和各向异性色散。
DOI：
10.3379/jmsjmag.13.307
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发表时间：
1989
影响因子：
--
通讯作者：
S. Uchiyama
中科院分区：
文献类型：
--
作者：
Y. Maehata;S. Tsunashima;S. Uchiyama
计算了具有单轴各向异性振幅和角色散的软磁薄膜的磁导率与频率的关系。对非晶Co-Nb薄膜进行了计算，其各向异性色散是通过低频FMR测量得到的。实测渗透率与计算结果的对比表明，有效单轴各向异性分布范围更广，数值更低。推导出磁化脉动是低有效场产生的原因之一。
Frequency dependence of permeability has been calculated for soft magnetic thin films which have amplitude and angular dispersion of the uniaxial anisotropy. The calculation has been adopted for amorphous Co-Nb films whose anisotropy dispersion has been determined by low frequency FMR measurements. Comparison of the measured permeability with the calculation suggests that the effective uniaxial anisotropy is dispersed more widely with low values than that obtained by the FMR method. The magnetization ripple is deduced to be one of the origins of the low effective field.