Dual torque from electron spins drives magnetic domain wall movement in artificial antiferromagnetic thin film, a major step forward in spintronics

https://phys.org/news/2025-10-dual-torque-electron-magnetic-domain.html

"faster, smarter, more energy-efficient electronic devices... spintronic memory reading or writing requires efficiently shifting domain walls... artificial antiferromagnetic thin film of cobalt/ Iridium/ platinum alternating layers... 2 cobalt layers coupled aligning magnetic moments in opposite directions... platinum layers generate electron spin streams via Spin Hall Effect spin torque on cobalt layers' magnetic moments... spin torques from top/ bottom platinum layers combine as dual-torque moving domain walls"