Fig. 1: MnBi2Te4 bulk and surface structure.
From: Native point defects and their implications for the Dirac point gap at MnBi2Te4(0001)
a Side view of the bulk crystal structure of MnBi2Te4 with red arrows showing the interlayer AFM order. The crystal cleavage in this block-layered compound takes place at the van der Waals gap, thus exposing a Te layer of an SL at the surface. b Top and c side views of the surface crystal structure. d Atomically-resolved STM image of the surface of the cleaved sample (1 V and 0.3 nA) showing dark triangular depressions and a bright circular protrusion.
