论文标题
减少大型阻尼铁磁材料的后背开关
Reduction of back switching by large damping ferromagnetic material
论文作者
论文摘要
关于旋转轨道扭矩引起的磁化动力学的最新研究表明，磁力化切换对铁磁自由层的阻尼常数的临界电流的依赖性较弱。然而，这项研究表明，阻尼常数在旋转轨道扭矩引起的磁化切换中仍然起着关键作用。一个不希望的切换返回到初始状态（称为后退切换），发生在Ferromagnet中，其易于轴平行于当前方向。数值和理论分析表明，当铁磁体的阻尼常数很大时，向后切换会受到强烈抑制。
Recent studies on magnetization dynamics induced by spin-orbit torque have revealed a weak dependence of the critical current for magnetization switching on the damping constant of a ferromagnetic free layer. This study, however, reveals that the damping constant nevertheless plays a key role in magnetization switching induced by spin-orbit torque. An undesirable switching, returning to an initial state, named as back switching, occurs in a ferromagnet with an easy axis parallel to the current direction. Numerical and theoretical analyses reveal that back switching is strongly suppressed when the damping constant of the ferromagnet is large.
