FERROMAGNETIC HYSTERESIS
FERROMAGNETIC HYSTERESIS
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DOI：
10.1109/tmag.1983.1062594
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发表时间：
1983-01-01
影响因子：
2.1
通讯作者：
ATHERTON, DL
中科院分区：
文献类型：
--
作者：
JILES, DC;ATHERTON, DL
基于平均场近似，从理论上导出了描述铁磁材料初始磁化曲线和磁滞回线的方程。力矩的相互作用被表示为耦合系数，并且由缺陷部位处的壁的钉扎引起的对畴壁的运动的约束力被表示为钉扎系数。所得到的模型的状态方程是一个一阶线性微分方程，该方程包含两个参数和一个标度参数λ，该标度参数λ表示耦合到两个场H和M的比率。
An equation describing the initial magnetisation curve and hysteresis loops of ferromagnetic materials has been derived theoretically based on a mean field approximation. The mutual interaction of the moments is expressed as a coupling coefficient and a restraining force on the motion of the domain walls, caused by the pinning of the walls at defect sites, is expressed as a pinning coefficient. The resulting equation of state for the model is a first order linear differential equation incorporating the two parameters and a scaling parameter λ which represents the ratio of the coupling to the two fields H and M.