One-dimensional topological insulators with noncentered inversion symmetry axis
One-dimensional topological insulators with noncentered inversion symmetry axis
In this Rapid Communication, we discuss the characteristic features of one-dimensional topological insulators with inversion symmetry but noncentered inversion axis in the unit cell, for any choice of the unit cell. In these systems, the global inversion operation generates a $k$-dependent inversion operator within the unit cell and this implies …