From a five-layer graphene sandwich, a rare electronic state emerges | Ferro-valleytricity

When stacked in five layers in a rhombohedral pattern, graphene takes on a rare “multiferroic” state, in which the material’s electrons exhibit two preferred electronic states: an unconventional magnetism, and “valley,” or a preference for one of two energy states. The results could help advance more powerful magnetic memory devices.

Credit: Sampson Wilcox, RLE
Credit: Jixiang Yang

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