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Dec 17 |
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Hamiltonian of the surface states of a 3D topological insulator Thanks for your comment. Does it mean that in some materials being 3D topological insulators, the spin-orbit coupling is a Rashba term and in other materials, it is a Dresselhaus term. I would be surprised since I thought that surface states were due to an intrinsic SOC term responsible for band inversion (different from Rashba and Dresselhaus). We often say that the surface states correspond to one Dirac cone as 1/4 graphene so the Hamiltonian should be the first one? |
