Scientists at TU Delft have unlocked a key quantum effect in graphene without using any magnetic fields, paving the way for ultra-thin quantum circuits.

By layering graphene on a special magnetic crystal, they created stable spin currents that travel along the edges of the material. These currents carry information through the electron’s spin—a feature that could power faster, more energy-efficient electronics and revolutionize quantum computing. This magnet-free approach makes it possible to build powerful spintronic devices small enough to fit inside next-generation chips.