Ultrathin materials made of a single layer of atoms have riveted scientists’ attention since the discovery of the first such material—graphene—about 17 years ago. Among other advances since then, researchers including those from a pioneering lab at MIT have found that stacking individual sheets of the 2D materials, and sometimes twisting them at a slight angle to each other, can give them new properties, from superconductivity to magnetism.
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Source: Phys.org