Mean-field Hubbard calculations on mirror-symmetric magic-angle twisted trilayer graphene predict antiferromagnetic order at neutrality with reduced critical U and non-trivial multiband Berry curvature despite zero Chern numbers.
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Magnetism and hidden quantum geometry in charge neutral twisted trilayer graphene
Mean-field Hubbard calculations on mirror-symmetric magic-angle twisted trilayer graphene predict antiferromagnetic order at neutrality with reduced critical U and non-trivial multiband Berry curvature despite zero Chern numbers.