论文标题
Skyrmion-Antiskyrmion液滴中的手性铁磁铁
Skyrmion-antiskyrmion droplets in a chiral ferromagnet
论文作者
论文摘要
我们发现在铁磁体中具有数值的具有skyrmion的纹理q = 0，在dzyaloshinskii-moriya相互作用和垂直方向性方面。这些具有Skyrmion-Antiskyrmion对的形式，可以称为手性液滴。它们在无限膜以及圆盘形磁元素中稳定。对于从铁磁到螺旋相的过渡，发现了液滴的液滴。我们在自旋转移扭矩下研究它们的运动。它们沿旋转流动的方向移动，因此，它们的动力学与标准Q = 0天空的霍尔动力学大不相同。
We find numerically skyrmionic textures with skyrmion number Q=0 in ferromagnets with the Dzyaloshinskii-Moriya interaction and perpendicular anisotropy. These have the form of a skyrmion-antiskyrmion pair and may be called chiral droplets. They are stable in an infinite film as well as in disc-shaped magnetic elements. Droplets are found for values of the parameters close to the transition from the ferromagnetic to the spiral phase. We study their motion under spin-transfer torque. They move in the direction of the spin flow and, thus, their dynamics are drastically different than the Hall dynamics of the standard Q=0 skyrmion.
