Altermagnetic bilayer spin locking enables all-electric room temperature spin current manipulation for ultra-compact energy-efficient spintronics

https://phys.org/news/2025-04-scientists-unveil-electrically-ultra-compact.html

"all-electric (no magnetic) control overcomes unwanted interference between components... altermagnetic materials' electron spins point in opposite directions, cancelling large-scale magnetization, enabling fine-tuning... bilayer chromium sulfide's electrons naturally separate into layers with opposite spins... flipping electric switch reverses transported electrons' spin polarization up to 87%, selectively lifting energy levels of 1 layer over other, resulting in strong, tunable spin-polarized current"

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