MnBi2Te4 devices show exchange bias only in odd septuple layers after field training, interpreted as arising from contrasting surface and bulk magnetism.
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Even-Odd Layer-Dependent Exchange Bias Effect in MnBi2Te4 Chern Insulator Devices
MnBi2Te4 devices show exchange bias only in odd septuple layers after field training, interpreted as arising from contrasting surface and bulk magnetism.