Valence band energy spectrum of HgTe quantum wells with an inverted band structure

The energy spectrum of the valence band in HgTe/CdxHg1−xTe quantum wells of a width (8–20) nm has been studied experimentally by magnetotransport effects and theoretically in the framework of a four-band kP method. Comparison of the Hall density with the density found from a period of the Shubnikov–de Haas (SdH) oscillations clearly shows that the degeneracy of states of the top of the valence band is equal to 2 at the hole density p