Dynamics of current-driven interacting magnetic domain walls

研究了高密度磁存储器件中电流驱动的铁磁畴壁的动力学特性。磁畴壁是磁存储信息的基本元素。为了实现磁性纳米结构的最大密度包装以最大限度地提高信息密度（从而实现小型化），磁性结构的相互作用是不可避免的。我们打算计算畴壁的磁耦合对电流驱动伙伴的影响，以揭示其动力学特性。我们的研究结果有望促进对磁性器件如何优化的理解，以避免不良影响或探索最佳磁信息处理的相互耦合。

We study the dynamics of current-driven ferromagnetic domain walls in densely packed magnetic storage devices. Domain walls are used as basic elements of magnetically stored information. Aiming to achieve a maximally dense packing of magnetic nanostructures in order maximize information density (and thus miniaturization), a mutual interaction of the magnetic textures is unavoidable. We intend to work out the impact of a magnetic coupling of a domain wall to a current-driven partner in order to reveal its dynamical properties. Our results can be expected to advance the understanding of how magnetic devices have to be optimized to either avoid undesired effects or to explore mutual coupling for optimal magnetic information processing.