How to get a Dirac corn surface state of topological insulator in VASP?

11 November 2018 0 2K Report

I 'try to repeat a job by computing surface state of Bi2Se3 slab, using VASP. but it is strange that spin-orbital coupling do not work. there are no Dirac corn in the gap. I wonder why because the Bi2Te3 bulk band shows good SOC affection.

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