Factors influencing the energy gap in topological states of antiferromagnetic MnBi${}_2$Te${}_4$

A. M. Shikin, T. P. Makarova, A. V. Eryzhenkov +6

The experimentally measured angle-resolved photoemission dispersion maps for MnBi${}_2$Te${}_4$ samples, which show different energy gaps at the Dirac point (DP), are compared with…