Minkov G. M.1,2, Rut O. E. 1, Sherstobitov A. А.1,2, Germanenko A. V. 1, Dvoretski S. A. 3, Mikhailov N. N. 3
1Ural Federal University after the first President of Russia B.N. Yeltsin, Yekaterinburg, Russia
2M.N. Mikheev Institute of Metal Physics, Ural Branch, Russian Academy of Sciences, Yekaterinburg, Russia
3Rzhanov Institute of Semiconductor Physics, Siberian Branch, Russian Academy of Sciences, Novosibirsk, Russia
Email: grigori.minkov@urfu.ru
The magnetotransport properties of HgTe/Hg1-xCdxTe quantum wells with a width of 32 and 46 nm in structures with two field electrodes were investigated. The analysis of the Shubnikov-de Haas oscillations, along with the analysis of intersubband magnetooscillations, allowed us to obtain information about the population of the spin branches of the electron spectrum split by spin-orbital interaction due to the asymmetry of the quantum well not only when the electron concentration changes, but also when the symmetry of the quantum well changes at a given electron concentration. The data obtained are interpreted using the results of the calculation of the energy spectrum performed within the framework of a self-consistent approach in a four-band kP-model. It is shown that taking into account the complexity of the spectrum of the studied systems is fundamentally important for the interpretation of experimental data. Keywords: HgTe, quantum wells, magnetotransport, Shubnikov-de Haas oscillations.
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