Three-dimensional interconnected magnetic nanocircuits
When we pattern magnetic materials on the nanoscale, it is possible to control – and indeed, dramatically change – their properties via geometrical effects. This is particularly promising when it comes to three-dimensional magnetic nanostructures, which are predicted to exhibit exotic properties ranging from curvature-induced magnetochirality to ultra-high domain wall velocities [1, 2, 3].
With increasing complexity comes increasingly rich physics and functionality. Strongly coupled interconnected systems have been proposed to exhibit highly degenerate energy landscapes , as well as forming the basis of future low-power IT technologies such as neuromorphic computing . When combined with the exotic properties of 3D nanomagnetism, significant opportunities arise for both fundamental physics and new concepts for devices.
In this PhD project you will study interconnected 3D magnetic nanostructures, with strong inter-structure coupling, to push forward our understanding of these exotic systems. In particular, by tailoring the three-dimensional geometry - specifically through the introduction of chirality and the balance of competing magnetic interactions - we will gain insight into the rich physics and higher functionalities and control that become available.
State-of-the-art 3D nanofabrication techniques for nanoscale magnetic structures , in combination with advanced magnetic nanomicroscopy [7, 8] will be harnessed to probe the behaviour of highly coupled 3D interconnected magnetic nanostructures. By probing the field- and current-induced response of magnetic textures such as domain walls, we will elucidate the influence of their internal structure and topology on their dynamic properties, opening the door to future physical and technological insights.