Spin reversal

Pictured: Schematic diagram of the experimental setup for measuring the dynamics of current-induced switching in Mn3Sn using magneto-optical microscopy, in a picosecond to sub-nanosecond time window. Credit: Kazuma Ogawa and Ryo Shimano, 2025

Scientists Watch Electron Spin Flip Within 140 Trillionths of a Second

A team from the University of Tokyo has demonstrated for the first time real-time imaging of magnetization switching in the antiferromagnetic material Mn3Sn (a compound of manganese and tin). The researchers identified two distinct switching mechanisms – thermal and non-thermal – and suggest that the rapid reversal