In charge-neutral Sb-doped MnBi6Te10, time-resolved ARPES shows multiple surface photovoltage shifts from adjacent one-unit-cell terraces, revealing intra-unit-cell charge redistribution that prevents QAHE via chemical doping.
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Spectroscopic evidence of intra-unit-cell charge redistribution in charge-neutral magnetic topological insulator Sb-doped MnBi6Te10
In charge-neutral Sb-doped MnBi6Te10, time-resolved ARPES shows multiple surface photovoltage shifts from adjacent one-unit-cell terraces, revealing intra-unit-cell charge redistribution that prevents QAHE via chemical doping.