Axel Hoffmann

UI Urbana-Champaign

RESEARCH INTERESTS

Explore the use of non-linear phenomena in magnetization dynamics for neuromorphic tasks.

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RESEARCH PROFILE

The movie shows the electric manipulation of magnetic domains using spin-orbit torques. Similar approaches can rearrange magnetic domain patterns, which may act as spin-wave conduits. The center image shows the spatial distribution of magnetic spin waves imaged with inelastic light scattering microscopy. Using different local magnetic fields allows to steer spin waves in desired directions. The right image shows a schematic of spin current generation via spin-orbit interactions by passing an electrical current through an antiferromagnet. Additional symmetry breaking from magnetic-order may provide torques with new symmetries that are useful for driving magnetic oscillators for neuromorphic computation.

RESEARCH EQUIPMENT