论文标题
有序的创造和运动与表面声波的运动
Ordered creation and motion of skyrmions with surface acoustic wave
论文作者
论文摘要
具有明确定义的自旋纹理的磁性天际对各种自旋式应用具有前所未有的潜力,这些应用具有其拓扑性非平凡和准粒子性能。为了将天空源用于实践技术,有效地追求了有效的操纵,尤其是对Skyrmion Hall效应(SKHE)的抑制。尽管最近在几种取代系统中降低了SKHE的最新进展,例如铁磁铁和合成反铁磁铁,但在铁磁铁中,有组织的创造和以SKHE可忽略不计的Skyrmions的当前驱动运动仍然具有挑战性。在这里,通过将[CO/PD]多层嵌入表面声波(SAW)延迟线中,我们在实验上实现了磁性天空的有序产生。观察到了最终的电流引起的Skhe诱导的天空运动,这可以归因于锯激发期间系统的能量重新分布。我们的发现为操纵拓扑的孤独子开辟了一个前所未有的新观点,并将推进天空电位和旋转声音电子学的发展。
Magnetic skyrmions with a well-defined spin texture have shown unprecedented potential for various spintronic applications owning to their topologically non-trivial and quasiparticle properties. To put skyrmions into practical technology, efficient manipulation, especially the inhibition of skyrmion Hall effect (SkHE) has been intensively pursued. In spite of the recent progress made on reducing SkHE in several substituted systems, such as ferrimagnets and synthetic antiferromagnets, the organized creation and current driven motion of skyrmions with negligible SkHE in ferromagnets remain challenging. Here, by embeding the [Co/Pd] multilayer into a surface acoustic wave (SAW) delay line, we experimentally realized the ordered generation of magnetic skyrmions. The resultant current-induced skyrmions movement with negligible SkHE was observed, which can be attributed to the energy redistribution of the system during the excitation of SAW. Our findings open up an unprecedentedly new perspective for manipulating topological solitons, and would advance the development of skyrmionics and spin acousto-electronics.