Graphene, one of the world’s strongest materials, isn’t normally magnetic. But when stacked and twisted, graphene develops a rare form of magnetism, new research finds. 

The magnetic field isn’t created by the usual spin of electrons within the individual graphene layers, but instead arises from the collective swirling of electrons in all of the three-layers of the stacked graphene structure, researchers reported Oct. 12 in the journal Nature Physics.



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