论文标题
Rashba Hund的绝缘子中的抗磁磁性天空和天空密度波
Antiferromagnetic Skyrmions and Skyrmion Density Wave in Rashba Hund's Insulator
论文作者
论文摘要
我们在Rashba耦合的Hund的绝缘子的模型中发现了具有高度公共和技术上重要的抗磁性抗磁性的磁相。结果基于对这项工作中的经典超级换次模型的无偏模拟模拟，该模型是从现实的微观电子哈密顿式化模型中得出的。我们还发现了一个新颖的天空密度波浪地面，其特征在局部天际密度图中以（$ q，q $）调制为特征。一个独特的不均匀状态，其特征在于自旋结构因子和丝状真实空间纹理中的圆形图案，被确定为稀疏的抗Fiferromagnetic Skyrmions的父母。我们预测，此处报道的磁状态可以在涉及$ 4D $或5D $过渡金属的多梁系统的薄膜中实现。
We discover magnetic phases hosting highly-elusive and technologically important antiferromagnetic skyrmion quasiparicles in a model for Rashba-coupled Hund's insulator. The results are based on unbiased simulations of a classical superexchange model derived, in this work, from a realistic microscopic electronic Hamiltonian. We also discover a novel skyrmion density wave groundstate characterized by a ($Q,Q$) modulation in the local skyrmion density map. A unique inhomogeneous state characterized by a circular pattern in spin structure factor and filamentary real-space textures is identified as the parent of sparse antiferromagnetic skyrmions. We predict that the magnetic states reported here can be realized in thin films of multiorbital systems involving $4d$ or $5d$ transition metals.
