topological invariants calculation on 2D system

Yifan GAO gawcista.gao at
Thu Sep 27 14:38:04 CEST 2018


I don't quite understand how can I get the topological invariants, like Z2 and Chern, within a 2D system? I'm feeling puzzled when building the surface.

BTW I'm using vasp.

Thank you,


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