论文标题
运动引起的惯性效应和拓扑相变
Motion-induced inertial effects and topological phase transitions in skyrmion transport
论文作者
论文摘要
在这项工作中，研究了当前对铁磁系统中托管的天际造成的惯性作用。 {当将动力学视为粒子样描述以外时，由于自我诱导的场，磁性天空可能会变形。我们执行蒙特卡洛模拟，以表征天际在运动过程中的变形。在低速性方面，天空形状的变形通过有效的惯性质量来定量，该惯性质量与耗散力有关。当天空移动更快时，大型的自我诱导的变形触发了拓扑转变。过渡的特征是天空的增殖和不同的总拓扑电荷，这是根据天际速度获得的。我们的发现提供了一种描述Skyrmion动力学的替代方法，这些动力学考虑了其结构的变形。此外，运动诱导的拓扑相过渡带来了通过速度效应来控制铁磁天空数量的可能性。
In this work, the current-induced inertial effects on skyrmions hosted in ferromagnetic systems are studied. {When the dynamics is considered beyond the particle-like description, magnetic skyrmions can deform due to a self-induced field. We perform Monte Carlo simulations to characterize the deformation of the skyrmion during its movement}. In the low-velocity regime, the deformation in the skyrmion shape is quantified by an effective inertial mass, which is related to the dissipative force. When skyrmions move faster, the large self-induced deformation triggers topological transitions. The transition is characterized by the proliferation of skyrmions and different total topological charge, which are obtained in terms of the skyrmion velocity. Our findings provide an alternative way to describe the skyrmion dynamics that take into account the deformations of its structure. Furthermore, the motion-induced topological phase transition brings the possibility to control the number of ferromagnetic skyrmions by velocity effects.
