Energy spectrum of the magnetic bloch states of the 2D electron gas with spin-orbit interaction rashba-type and hexagonal warping effect

In the article there are considered corrections to the energy spectrum and wave function of a 2D electron gas with a spin-orbit interaction of the Rashba type in an external static magnetic field associated with the effect of hexagonal warping of the Fermi surface of two-dimensional electron gas in topological insulators on the basis of bismuth telluride.