Hi everyone, I am working with 2D materials, applying biaxial strain. At some strain value, the electronic structure exhibits the band diagram similar to that of a Topological Insulator (as I could observe band inversion from partial DOS too). The material I am working with has inversion symmetry which implies that I can find parity eigen values at different bands(then I can find Z2 Topological Invariant using parity eigen values). My question is:
How can we obtain parities (or directly Z2 values, if possible) using Quantum Espresso for a given band diagram? Regards, Asad Mahmood, Physics Department, Q.A.U, Islamabad, Pakistan
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