Quasiclassical calculations of Landau level spectrum for 20.5-nm-wide H gTe quantum well: "extremum loop" model and effects of cubic symmetry

Quasiclassical calculations of the effective cyclotron mass and the spectrum of Landau levels have been carried out for carriers of the size-quantized H2 subband with a nonmonotonic dispersion law, which forms a valence band of 20.5-nm-wide HgTe quantum well with an inverted band structure. The model of the so-called "extremum loop", previously developed by Rashba and Sheka for semiconductors with a wurtzite lattice, has been used for calculations. The results obtained are compared both with the empirical picture and with quantum-mechanical calculations of the Landau level spectrum for the HgTe quantum well in the semimetallic phase. © 2021 Author(s).The research was carried out within the state assignment of Ministry of Science and Higher Education of the Russian Federation (theme “Electron” No. AAAA-A18-118020190098-5), supported in part by RFBR, Project No. 18-02-00172. We are grateful to Novik E. G. for the contribution to the band structure calculations of the real 20 nm HgTe quantum well

EXCHANGE ENHANCEMENT OF THE ELECTRON G-FACTOR IN InGaAs/InAlAs METAMORPHIC HETEROSTRUCTURES WITH A HIGH InAs CONTENT

Magnetotransport in InGaAs/InAlAs heterostructures in tilted magnetic field is studied. It is shown that the value of the g* factor increases with an increase in the InAs content and the dependence of the g* factor on magnetic field is also revealed.Работа выполнена в рамках государственного задания по теме «Электрон» Г.р. № 122021000039-4