Diamonds shine a light on hidden currents in graphene

A new diamond-based quantum sensing technique gives researchers a map of the intricate movement of electricity on a microscopic scale. New results demonstrate the potential of the technique by revealing the fluid-like electrical currents that flow in graphene, a layer of carbon just one atom thick. Graphene has exceptional electrical properties, and the technique could help researchers better understand graphene and other materials and find new uses for them.

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