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Researchers at The University of Manchester may have cleared a significant hurdle on the path to quantum computing, demonstrating step-change improvements in the spin transport characteristics of nanoscale graphene-based electronic devices.

The team—comprising researchers from the National Graphene Institute (NGI) led by Dr. Ivan Vera Marun, alongside collaborators from Japan and including students internationally funded by Ecuador and Mexico—used encapsulated by another 2D material () in a so-called van der Waals heterostructure with one-dimensional contacts (main picture, above). This architecture was observed to deliver an extremely high-quality channel, reducing the interference or electronic 'doping' by traditional 2D tunnel contacts.

'Spintronic' devices, as they are known, may offer higher energy efficiency and lower dissipation compared to conventional electronics, which rely on charge currents. In principle, phones and tablets operating with spin-based transistors and memories could be greatly improved in speed and , exceeding Moore's Law.

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