Features of energy spectrum and quantum magnetotransport in type-II heterojunctions

The peculiarities of the energy spectrum of the separated type-II heterojunction in the external magnetic field is studied theoretically and experimentally. It is shown that due to the hybridization of the valent zone states of one semiconductor and conductivity zone of another one there take place the levels antiintersections, which lead to origination of the quasi-gaps in the states density in the nonzero magnetic field. Good agreement of the experimental results of the magnetotransport studies on the GaInAsSb/p-InAs samples with the different alloying level of the quadruple solid solution with the results of the model calculations is demonstrated and the peculiarities of the energy spectrum of the separated type-II heterojunctions are established