Abstract:
Corrections from the K3 Dresselhaus term cubic in the wave vector to the energies of the ground and first excited Landau levels in III–V semiconductors have been analyzed. The calculated corrections together with the known corrections from the K4 terms in the Hamiltonian of an electron provide a complete analytical description of the anisotropy of the conduction-band vertex of the III–V semiconductors in an ultraquantum magnetic field. The performed analysis of the experimental data on the splitting of the cyclotron resonance line in GaAs confirms the reality of the anisotropy mechanism under investigation.