Strongly-interacting nanomagnetic arrays are crucial across an ever-growing suite of technologies. Spanning neuromorphic computing, control over superconducting vortices and reconfigurable magnonics, the utility and appeal of these arrays lies in their vast range of distinct, stable magnetization states. Different states exhibit different functional behaviours, making precise, reconfigurable state control an essential cornerstone of such systems. However, few existing methodologies may reverse an arbitrary array element, and even fewer may do so under electrical control, vital for device integration. We demonstrate selective, reconfigurable magnetic reversal of ferromagnetic nanoislands via current-driven motion of a transverse domain wall in an adjacent nanowire. The reversal technique operates under all-electrical control with no reliance on external magnetic fields, rendering it highly suitable for device integration across a host of magnonic, spintronic and neuromorphic logic architectures. Here, the reversal technique is leveraged to realize two fully solid-state reconfigurable magnonic crystals, offering magnonic gating, filtering, transistor-like switching and peak-shifting without reliance on global magnetic fields.

在不断增长的技术套件中，相互作用力强的纳米磁性阵列至关重要。跨越神经形态计算，控制超导涡旋和可重构磁控管，这些阵列的实用性和吸引力在于其范围广泛的独特，稳定的磁化状态。不同的状态表现出不同的功能行为，从而使精确，可重新配置的状态控制成为此类系统的基本基石。但是，很少有现有方法可以反转任意阵列元素，而在电气控制下进行反转对于设备集成至关重要。我们展示了通过电流驱动的相邻纳米线中的横向畴壁的运动，对铁磁纳米岛的选择性，可重构磁反转。逆转技术在全电控制下运行，不依赖于外部磁场，使其非常适合跨多种强磁，自旋电子和神经形态逻辑架构进行设备集成。在这里，利用反转技术来实现两个全固态可重构磁晶，可以在不依赖全局磁场的情况下提供磁控门，滤波，类似晶体管的开关和峰值移动。