期刊
SEMICONDUCTORS
卷 45, 期 1, 页码 110-117出版社
MAIK NAUKA/INTERPERIODICA/SPRINGER
DOI: 10.1134/S1063782611010088
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资金
- Russian Foundation for Basic Research [09-02-00752]
- Federal Targeted Program Scientific-Pedagogical Personnel of Innovative Russia
- Russian Academy of Sciences
- Dinastiya Foundation
The effect of electron-electron interaction on the spectrum of two-dimensional electron states in InAs/AlSb (001) heterostructures with a GaSb cap layer with one filled size-quantization subband. The energy spectrum of two-dimensional electrons is calculated in the Hartree and Hartree-Fock approximations. It is shown that the exchange interaction decreasing the electron energy in subbands increases the energy gap between subbands and the spin-orbit splitting of the spectrum in the entire region of electron concentrations, at which only the lower size-quantization band is filled. The nonlinear dependence of the Rashba splitting constant at the Fermi wave vector on the concentration of two-dimensional electrons is demonstrated.
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