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Spin effects in a confined two-dimensional electron gas: Enhancement of the<i>g</i>factor, spin-inversion states, and their far-infrared absorption
We investigate several spin-related phenomena in a confined two-dimensional electron gas (2DEG) using the Hartree-Fock approximation for the mutual Coulomb interaction of the electrons. The exchange term of the interaction causes a large splitting of the spin levels whenever the chemical potential lies within a Landau band (LB). This splitting …