Two-dimensional oxide topological insulator with iron-pnictide superconductor LiFeAs structure
Two-dimensional oxide topological insulator with iron-pnictide superconductor LiFeAs structure
By using first-principles calculations, we propose that ZrSiO can be looked at as a three-dimensional (3D) oxide weak topological insulator (TI) and its single layer is a long-sought-after 2D oxide TI with a band gap up to 30 meV. Calculated phonon spectrum of the single layer ZrSiO indicates it is …