Engineering a driven-dissipative bath of altermagnetic quantum magnons for controlling classical dynamics of spins hosting spin waves, domain walls, or skyrmions
Using quantum magnets to remotely control classical magnetic waves and patterns
Physicists have designed a way to control magnetic behavior in one material by attaching a quantum magnetic layer next to it. The quantum layer acts like a bath that damps and drives the classical magnetic material, creating new ways to tune how magnetic waves, domain walls, and skyrmions (tiny magnetic vortices) move and disappear. This could let engineers manipulate magnetic dynamics without direct electrical or magnetic contact.
Magnetic devices are central to data storage and computing, and most current approaches rely on direct control of the magnet itself. This technique offers a new handle for tuning magnetic behavior through an adjacent layer, potentially enabling more efficient or flexible designs for spintronic devices and magnonic circuits. It demonstrates a path to remotely shape how magnetic patterns propagate and annihilate, which matters for encoding and erasing information in next-generation magnetic memory.