Quantum spin Hall effect currents, vital for spintronics, observed for the first time in graphene without using magnetic fields

https://www.eurekalert.org/news-releases/1088628

"overcomes need to applying large external magnetic fields by layering graphene on top of CrPS₄ magnetic layer, causing electron flow in graphene to becomes dependent on electrons’ spin direction... spin currents topologically’ protected, staying intact over 10s of μm long distances without losing spin information... ultrathin quantum circuits, efficient/ coherent transfer of quantum information through electron spins... essential building blocks in quantum computing, seamlessly linking qubits together within quantum circuits"