磁泡条畴头 Bloch 线产生的三维模拟

3 Dimensional Simulation for Block Line Generation in Magnetic Bubble Domain Head

用改进的Ｄｕｆｏｒｔ－Ｆｒａｎｃｋｅｌ显示格式差分法求解条畴头畴壁运动时中心位置ｑ（ｚ，β，ｔ）和畴壁中心磁化矢量方位角（ｚ，β，ｔ）的耦合微分方程组．讨论了畴壁膨胀及杂散面内场对畴壁运动的作用以及脉冲驱动磁场Ｈｚ和薄膜材料阻尼因子对Ｂｌｏｃｈ线产生的影响．

Modified Dufort Franckel difference explicit grids is used to solve the differential equations. Associated with the coupling between central positions q(z,β,t) of moving domain wall in stripe domain head and related magnetization azimuth angles. Effects of both domain wall bulge and in-plane stray field on domain wall motion are discussed; furthermore, effects of pulse driving field and damping factor of thin film material on Bloch line generation are also discussed.