Competing magnetic interactions in the antiferromagnetic topological insulator MnBi${}_2$Te${}_4$

J. -Q. Yan, D. Pajerowski, Liqin Ke +6

The antiferromagnetic (AF) compound MnBi${}_2$Te${}_4$ is suggested to be the first realization of an antiferromagnetic (AF) topological insulator. Here we report on inelastic neut…