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High‐quality two‐dimensional electron system confined in an AlAs quantum well
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9.Note that in our simulation, the Fermi level at the dopants falls below the conduction band edge. This energy is consistent with the binding energies typically assumed for Si in with [see, e.g., F. Stern, Appl. Phys. Lett. 43, 974 (1983)].
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12.We emphasize that our cyclotron resonance data were taken at T where only the lowest Landau level is occupied. We cannot, therefore, rule out the possibility that at electrons occupy the ellipsoids with lighter in-plane mass while at higher B they are transferred to the ellipsoids with heavier in-plane mass.
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