论文标题
在手性抗铁磁铁中旅行的天空
Traveling skyrmions in chiral antiferromagnets
论文作者
论文摘要
具有Dzyaloshinskii-Moriya（DM）相互作用的抗铁磁（AFM）材料中的Skyrmions预计将其存在与DM Ferromagnets（FM）相同的原因。结果表明，具有DM相互作用的抗铁磁铁中的天空可以随着速度的孤立波的最大值，取决于DM参数的最大值。它们的配置是数值的。 AFM Skyrmion的能量和线性动量导致其质量的适当定义。我们提供了流行天空的能量摩孔分散的细节，并根据精确的关系探索它们的粒子样特征。这里已知与FM中拓扑孤子的动力学相关的Skyrmion数与动态行为无关。结果，AFM中天空的孤子行为与FM对应物的动态行为形成鲜明对比
Skyrmions in antiferromagnetic (AFM) materials with the Dzyaloshinskii-Moriya (DM) interaction are expected to exist for essentially the same reasons as in DM ferromagnets (FM). It is shown that skyrmions in antiferromagnets with the DM interaction can be traveling as solitary waves with velocities up to a maximum value that depends on the DM parameter. Their configuration is found numerically. The energy and the linear momentum of an AFM skyrmion lead to a proper definition of its mass. We give the details of the energy-momentum dispersion of traveling skyrmions and explore their particle-like character based on exact relations. The skyrmion number, known to be linked to the dynamics of topological solitons in FM, is, here, unrelated to the dynamical behavior. As a result, the solitonic behavior of skyrmions in AFM is in stark contrast to the dynamical behavior of their FM counterparts
