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image: (a) Schematic crystal structure of MnBi2Te4. The red and blue arrows denote magnetic moments of Mn atoms. (b) High-Chern-number (C=2) Chern insulator state in 10-SL MnBi2Te4 device.
Caption (a) Schematic crystal structure of MnBi2Te4. The red and blue arrows denote magnetic moments of Mn atoms. (b) High-Chern-number (C=2) Chern insulator state in 10-SL MnBi2Te4 device.
The Harvard research team investigated whether a similar effect could be achieved in a centrosymmetric crystal, specifically the antiferromagnetic topological insulator MnBi2Te4. [caption id ...