The experimental determination of exchange mass terms in surface states on both terminations of MnBi4Te7

Dezhi Song, Fuyang Hang, Gang Yao +3

The intrinsic antiferromagnetic topological insulators in the Mn-Bi-Te family, composed of superlattice-like MnBi2Te4/(Bi2Te3)n (n = 0, 1, 2, 3...) layered structure, present intri…