Monday, 24 September 2018

Wigner crystal -- not Mott insulator -- in 'magic-angle' graphene

Recently, scientists created a stir in the field of condensed matter physics when they showed that two sheets of graphene twisted at specific angles display two emergent phases of matter. After a careful review of the experimental data researchers say that the insulating behavior of the “magic-angle” graphene is not Mott insulation, but something even more profound – a Wigner crystal.

from Engineering and Construction News – ScienceDaily https://www.sciencedaily.com/releases/2018/09/180924174457.htm



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