Spin injection demonstrated from Mn5Si3 despite no net magnetization

Researchers electrically injected spins from Mn5Si3 into a non-magnetic channel and detected their propagation at a separate ferromagnetic electrode, according to a Nature paper. Reversing the magnet’s state reversed the detected signal. Mn5Si3 has no net magnetization, and the authors say their analysis and modeling are consistent with altermagnetic order in the material.