Collective length effect on the magnetostatic properties of arrays of glass-coated amorphous alloy microwires
Collective length effect on the magnetostatic properties of arrays of glass-coated amorphous alloy microwires
复制标题
玻璃涂层非晶合金微丝阵列静磁性能的集体长度效应
DOI：
10.1016/j.jmmm.2007.07.015
复制
发表时间：
2008
影响因子：
2.7
通讯作者：
Huahui He
中科院分区：
文献类型：
--
作者：
Yong;Jianjun Jiang;S. Bie;Lin Yuan;H. Davies;Huahui He
研究了阵列中微丝N的数量及其长度对玻璃涂层富铁和富钴非晶合金微丝的再磁化过程和静磁性能的影响。通过振动样品磁力测定法测量重磁化曲线。当N从1增加到150时，富铁和富钴微线阵列的矫顽场和饱和场增加，而剩磁与饱和比下降。当微线长度从10减小到1mm时，矫顽场和剩磁与饱和比下降。磁弹性能和偶极-偶极相互作用能。此外，玻璃涂层富铁和富钴微丝的临界长度是根据静磁特性的突变来估计的。
The effects of the number of microwires N in an array and of their lengths on the remagnetization process and the magnetostatic properties for glass-coated Fe-rich and Co-rich amorphous alloy microwires have been investigated. The remagnetization profiles were measured by vibrating sample magnetometry. The coercive field and the saturation field for arrays of both Fe-rich and Co-rich microwires increased while the remanence to saturation ratio decreased as N increased from 1 to 150. The coercive field and remanence to saturation ratio decreased when the length of the microwires was reduced from 10 to 1mm.The effect of the collective length of an array of microwires on their magnetostatic properties is analyzed using a model considering the balance between the demagnetizing energy, the magnetoelastic energy and the dipolar–dipolar interaction energy. Also, the critical lengths of the glass-coated Fe-rich and Co-rich microwires are estimated from the abrupt change in the magnetostatic properties.