The observation of Chern mosaic and Berry-curvature magnetism in magic angle graphene

The observation of Chern mosaic and Berry-curvature magnetism in magic angle graphene

a, Schematic layout showing backgate voltage V_bg^dc+V_bg^ac applied to the MATBG sample and the corresponding change in the local magnetic field B_z^ac (x,y) is imaged using the scanning SOT. The Chern mosaic is shown schematically in the MATBG. b, m_z (x,y,ν_↑) measured at B_a=50 mT and ν= 0.966. The red (blue) colors indicate paramagnetic-like (diamagnetic-like) …

The observation of Chern mosaic and Berry-curvature magnetism in magic angle graphene Read More »