论文标题
中心对称近晶石磁铁中的天空晶体的低能激发:脱钩的旋转式激发和非交流
Low-Energy Excitations of Skyrmion Crystals in a Centrosymmetric Kondo-Lattice Magnet: Decoupled Spin-Charge Excitations and Nonreciprocity
论文作者
论文摘要
我们理论上研究了通过传导 - 电子介导的磁相互作用稳定的天际晶体的自旋和电荷激发,这是通过与大规模旋转旋转模拟模拟的中心对称近晶石模型中的自旋芯耦合结合的。我们揭示了由Fermi-Surface几何形状控制的自旋激发通道和自旋激发通道的明显分离和自旋激发的非偏置性质,这是中心对称式巡回宿主的Skyrmion晶体所独有的,并且可以是新型物理现象的来源。
We theoretically study spin and charge excitations of skyrmion crystals stabilized by conduction-electron-mediated magnetic interactions via spin-charge coupling in a centrosymmetric Kondo-lattice model by large-scale spin-dynamics simulations combined with the kernel polynomial method. We reveal clear segregation of spin and charge excitation channels and nonreciprocal nature of the spin excitations governed by the Fermi-surface geometry, which are unique to the skyrmion crystals in centrosymmetric itinerant hosts and can be a source of novel physical phenomena.