Probing the wavefunction of the surface states in Bi2Se3 topological insulator: a realistic tight-binding approach
@article{Pertsova2013ProbingTW, title={Probing the wavefunction of the surface states in Bi2Se3 topological insulator: a realistic tight-binding approach}, author={Anna Pertsova and Carlo Maria Canali}, journal={New Journal of Physics}, year={2013}, volume={16} }
We present results of a microscopic tight-binding modeling of Bi 2 ?> Se 3 ?> three-dimensional topological insulator using a sp 3 ?> Slater–Koster Hamiltonian, with parameters calculated from density functional theory. Based on the calculated atomic- and orbital-projections of the wavefunctions associated with valence- and conduction-band states at the center of the Brillouin zone, we propose a real-space description of band inversion for both bulk and a slab of finite thickness. A systematic…
28 Citations
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This work establishes tunable capacitive coupling between the surface states of a bulk-insulating TI BiSbTeSe_{2} and study the effect of this coupling on QH plateaus and Landau level (LL) fan diagram via dual-gate control.
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