At hole filling ν=2, twisted double bilayer TMDs with ABBA stacking host a Dirac semimetal that turns into a Néel-type antiferromagnetic insulator at small twist angles, with a continuous transition in the Gross-Neuveu-Heisenberg universality class.
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Dirac quantum criticality in twisted double bilayer transition metal dichalcogenides
At hole filling ν=2, twisted double bilayer TMDs with ABBA stacking host a Dirac semimetal that turns into a Néel-type antiferromagnetic insulator at small twist angles, with a continuous transition in the Gross-Neuveu-Heisenberg universality class.