Interplay between surface Dirac and Rashba states specific for topologically nontrivial van der Waals superlattices

I. A. Shvets, E. V. Chulkov, S. V. Eremeev

Here we show that, in contrast to the observed surface states in well studied pnictogen chalcogenide van der Waals (vdW) topological insulators (TIs) with quintuple layer (QL) or s…