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.
To study the system with the cylindrical geometry we fix the expecta- tion values ⟨Sz i ⟩ and ⟨sz i ⟩ in Eq
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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.