Model Hamiltonian for topological Kondo insulator SmB₆

Starting from the k•p method in combination with first-principles calculations, we systematically derive the effective Hamiltonians that capture the low energy quasi-particle structures of the recently discovered topological Kondo insulator SmB₆. Using these effective Hamiltonians we can obtain both the energy dispersion and the spin texture of the topological surface states, which can be detected by further experiments.