中文摘要：

利用自制的可加磁场样品台,结合离焦洛仑兹电子显微术,原位研究了坡莫合金中的一种链状位移型磁畴壁在磁化和反磁化过程中的变化,并据此提出了相应的样品薄膜面内的磁力线分布模型。

英文摘要：

In-situ investigation of the magnetization reversal process of displaced chain walls in Permalloy under applied in-plane magnetic field were carried out by out-of-focus methods of Lorentz electron microscopy using a homemade magnetizing stage.The magnetic flux in the plane of the film was schematically illustrated.