Prefer a chat interface with context about you and your work?
Quantum Hall Effect of Massless Dirac Fermions in a Vanishing Magnetic Field
The effect of strong long-range disorder on the quantization of the Hall conductivity sigma{xy} in graphene is studied numerically. It is shown that increasing Landau-level mixing progressively destroys all plateaus in sigma{xy} except the plateaus at sigma{xy}=-/+e{2}/2h (per valley and per spin). The critical state at the Dirac point is …