Buckled honeycomb AF Mott insulators can be driven by electric field into an AFCI phase whose quantized Hall conductance persists up to room temperature when spin-orbit coupling and hopping are sufficiently strong.
This fixes the Hamiltonian and avoids too many unknown parameters, which allows for an easier and faster convergence of the DMFT loop [ 8]
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High-Temperature Quantum Anomalous Hall Effect in Buckled Honeycomb Antiferromagnets
Buckled honeycomb AF Mott insulators can be driven by electric field into an AFCI phase whose quantized Hall conductance persists up to room temperature when spin-orbit coupling and hopping are sufficiently strong.