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U.S. Department of Energy Office of Science

2018

University of Illinois at Urbana-Champaign

University of Illinois Team Finds Wigner Crystal—Not Mott Insulator—in 'Magic-angle' Graphene

Researchers at the University of Illinois at Urbana-Champaign have recently shown that the insulating behavior reported by the MIT team has been misattributed. Professor Philip Phillips, a noted expert in the physics of Mott insulators, says a careful review of the MIT experimental data by his team revealed that the insulating behavior of the “magic-angle” graphene is not Mott insulation, but something even more profound—a Wigner crystal.

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