Electric control of magnetic vortex dynamics in a reproducible way on an ultrafast time scale is a key element in the quest for efficient spintronic devices with low-energy consumption. To be useful, the control scheme should ideally be swift, be scalable, be noninvasive, and result in reliable magnetic switching. Such requirements, particularly the reproducibility of altering the vortex chirality and/or polarity, are not yet met by magnetic vortex switching via external magnetic fields, spin-polarized currents, spin waves, or laser pulses. Here, we demonstrate a novel packaged-skyrmion-mediated vortex switching process driven by a simple sequence of picosecond electrical field pulses via magnetoelectric interactions. Both the vortex chirality and polarity show a well-defined reversal behavior. The unambiguous repeated switching between four different magnetic vortex states provides an energy-efficient, highly localized, and coherent control method for nonvolatile magnetic vortex-based information storage and handling.

以超快的时间尺度以可再现的方式对磁涡旋动力学进行电控制是寻求低能耗的高效自旋电子器件的关键要素。为了有用，控制方案理想地应该是快速的，可伸缩的，无创的并且导致可靠的磁性切换。经由外部磁场，自旋极化电流，自旋波或激光脉冲的磁涡旋切换尚未满足这样的要求，特别是改变涡旋手性和/或极性的可再现性。在这里，我们演示了一种新颖的由包装的斯费米翁介导的涡旋转换过程，该过程由一个简单的皮秒电场脉冲序列通过磁电相互作用驱动。旋涡手性和极性都显示出明确的逆转行为。