Domain structure and its movement determine the physical properties of ferromagnet. Investigation of domains is the precondition to study macroscopic properties of ferromagnet.

• 磁畴结构及其运动规律直接决定了磁性材料的物理性质和应用方向,纳米尺度的磁畴检测是进行磁性薄膜研究的前提条件。