论文标题
在野外驱动的域壁运动中，以补偿铁磁纳米线
On field-driven domain wall motion in compensated ferrimagnetic nanowires
论文作者
论文摘要
基于通用的铁磁动力学，解决了沿角动量补偿点（AMCP）附近的铁磁纳米线（AMCP）沿铁磁性纳米线的引人入胜的高速野外域壁（DW）运动。在一般条件下证明了AMCP中缺乏进型扭矩和无限步行者分解场的物理学。基于能源保护原理，获得了一个几乎精确的DW速度公式，有效，超出了Walker崩溃场。我们的结果与所有现有的实验和模拟都一致。该理论为DW操纵提供了有用的指导。
The fascinating high-speed field-driven domain wall (DW) motion along ferrimagnetic nanowires near the angular momentum compensation point (AMCP) is solved based on the generic ferrimagnetic dynamics. The physics of the absences of precessional torque and infinite high Walker breakdown field at the AMCP is proved under general conditions. Based on the energy conservation principle, an almost exact DW velocity formula, valid beyond the Walker breakdown field, is obtained. Our results agree with all existing experiments and simulations. This theory provides useful guidances to DW manipulation.
