An out-of-plane electric field breaks PT symmetry in even-layer MnBi2Te4 and drives a topological phase transition to a Chern insulator with Chern number 3, enabling an electric-field-controlled anomalous Hall switch.
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Berry Curvature Engineering by Gating Two-Dimensional Antiferromagnets
An out-of-plane electric field breaks PT symmetry in even-layer MnBi2Te4 and drives a topological phase transition to a Chern insulator with Chern number 3, enabling an electric-field-controlled anomalous Hall switch.