Graphene's quantum spin injection promises energy-efficient spintronics

https://phys.org/news/2025-02-graphene-quantum-energy-efficient-spintronics.html

"fully encapsulating monolayer graphene in insulating 2D hexagonal boron nitride, protecting its high quality... 2D stack exposing only edges of graphene, laying magnetic nanowire electrodes over stack, forms 1D contacts injectioning at 20°K, revealing electron transport across interface as quantum... avoids need for physical constriction within graphene channel, overcoming fabrication challenges... magnetic nature of the nanoscale contacts enables quantized spin injection... low-power ballistic spintronics"