Dynamics of a single domain wall in artificially structured magnetic wires

研究了人工结构磁力线中单个磁畴壁的动力学行为。研究结果总结如下：(1)在磁线中引入的人工结构可以作为抵抗磁场壁运动的钉扎势。(2)这种钉扎势可以作为理想的单个势垒来抵御磁场壁的运动。(3)确定了磁化壁速度作为外部磁场的函数。(4)在具有不对称结构的磁力线中，磁化壁的去钉扎场取决于磁场壁运动的方向。

Dynamics of a single domain wall in artificiaily structured magnetic wires has been investigated.Summary of this research results is as follows ;(1)An artificial structure introduced in a magnetic wire can be work as a pinning potential against a domain wall motion.(2)This pinning potential can work as an ideal single potential barrier against a domain wall motion.(3)Domain wall velocity as a function of an external magnetic field was determined.(4)In a magnetic wire with asymmetric structure, the depinning field of a domain wall depends on the direction of domain wall motion.