论文标题
手性倒转和半径爆炸，通过珍珠涡流对néel型天空的爆炸
Chirality inversion and radius blow-up of a Néel-type skyrmion by a Pearl vortex
论文作者
论文摘要
我们开发了一种理论，用于在薄超导体 - 手动铁磁异质结构中使用Néel类型的Skyrmion和Pearl涡流的同轴构型理论。使用Euler-Lagrange方程和微磁模拟的直接数值溶液，我们证明了珍珠涡流的不均匀磁场在没有涡旋的情况下显着修改了Skyrmion曲线。我们发现了Skyrmion的半径和Skyrmion手性的反转。为了解开这些效果背后的物理学，我们在存在涡流的情况下发明了新型的两参数ANSATZ，以用于天空的磁化特征。手性倒转和半径爆炸不仅受异质结构的材料参数控制，而且由超导体的厚度控制。我们的发现可能对位于Skyrmion-Wortex Pairs上的Majorana模式有影响。
We develop a theory for the coaxial configuration of a Néel-type skyrmion and a Pearl vortex in thin superconductor-chiral ferromagnetic heterostructures. Using direct numerical solution of the Euler-Lagrange equation and micromagnetic simulations we demonstrate that the inhomogeneous magnetic field of the Pearl vortex significantly modifies the skyrmion profile with respect to the one in the absence of the vortex. We discover drastic enlargement of the skyrmion's radius and inversion of the skyrmion's chirality. To unravel physics behind these effects we invent novel two-parameter ansatz for the magnetization profile of the skyrmion in the presence of the vortex. Chirality inversion and radius blow-up are controlled not only by the material parameters of the heterostructure but also by the thickness of the superconductor. Our findings can have implications for Majorana modes localized at skyrmion-vortex pairs.
