Family*

The MnBi₂Te₄(Bi₂Te₃)_n family of materials are potential candidates for magnetic topological insulators (MTIs) that may show the Quantum Anomalous Hall Effect (QAHE). This class of materials are heterostructures of MnBi₂Te₄ and Bi₂Te₃ layers that are stacked together via van der Waals forces, with n number of Bi₂Te₃ layers interstitially placed between MnBi₂Te₄ layers. In this talk, we present Angular Resolved Photoemission Spectroscopy (ARPES) experiments on MnBi₄Te₇, MnBi₆Te₁₀, and MnBi₈Te₁₃, demonstrating the topological nature of each material. Furthermore, we deconvolve the surface spectra due to each possible surface termination for each stacking arrangement, demonstrating a rich transition from the gapless MnBi₂Te₄ surface, through a gapped Bi₂Te₃-like surface, and ending with an approximate pure Bi₂Te₃ surface.