Dynamically Driven Emergence in a Nanomagnetic System

Emergent behaviors occur when simple interactions between a system's constituent elements produce properties that the individual do not exhibit in isolation. This article reports tunable emergent observed domain wall (DW) populations of arrays interconnected magnetic ring-shaped nanowires under an applied rotating field. DWs interact stochastically at ring junctions to create mechanisms DW population loss and gain. These combine give dynamic, field-dependent equilibrium is robust property array, despite highly varied local configurations. The arrays’ (e.g., non-linear behavior, “fading memory” changes field, fabrication repeatability, scalability) suggest they are interesting candidate system for realizing reservoir computing (RC), form neuromorphic computing, hardware. By way example, simulations performing RC approaches 100% success classifying spoken digits single speakers.