Spin-splitting in the electron subband of asymmetric GaAs/AlGaAs quantum wells: the multiband envelope function approach

Wissinger, L. ; Rössler, Ulrich ; Winkler, R. ; Jusserand, B. ; Richards, D.

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Date of publication of this fulltext: 05 Aug 2009 13:28

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Abstract

The dependence on carrier concentration of the anisotropic spin splitting of the lowest electron subband in asymmetrically doped GaAs/Al $_{x}$ Ga $_{1-x}$ As quantum wells is determined. We employ the multiband envelope function approach based on 8 x 8 and 14 x 14 { $\bf$ k·p} Hamiltonians. Our self-consistent calculations yield results in quantitative agreement with experimental data obtained from inelastic light scattering.