Antiferromagnetic electron spin motion detection/ control within antiferromagnets using 2D antiferromagnetics/ tunnel junction spin-filter tunneling

https://phys.org/news/2025-07-physicists-holy-grail-electron.html#google_vignette

"in antiferromagnet spins cancel so no external magnetic field produced, so difficult with sub-mm samples: detecting spin motion within antiferromagnets/ control of spin motion... µm-scale devices with strong signals, using tunnel junctions detecting spin motions electrically, nearly 1,000X smaller... spin direction change causes electrical resistance change, enabling spin dynamics measure at high speed... control spins using spin-orbit torque, twisting layers breaking symmetry... ultra-fast high frequency information transfer"