When stacked in five layers in a rhombohedral pattern, graphene takes on a rare “multiferroic” state, exhibiting both unconventional magnetism and an exotic electronic behavior known as ferro-valleytricity. (Courtesy: Sampson Wilcox at MIT RLE)
Graphene boasts many exceptional properties, and researchers in the US have found yet another one: a
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Isabelle Dumé
is a contributing editor to Physics World