Resonant spin-dependent electron coupling in a III-V/II-VI heterovalent double quantum well

  title={Resonant spin-dependent electron coupling in a III-V/II-VI heterovalent double quantum well},
  author={Alexey Toropov and Irina V. Sedova and Sergey V. Sorokin and Ya. V. Terent’ev and Eougenious L. Ivchenko and Stefan Ivanov},
  journal={Physical Review B},
We report on design, fabrication, and magnetooptical studies of a III-V/II-VI hybrid structure containing a GaAs/AlGaAs/ZnSe/ZnCdMnSe double quantum well (QW). The structure design allows one to tune the QW levels into the resonance, thus facilitating penetration of the electron wave function from the diluted magnetic semiconductor ZnCdMnSe QW into the nonmagnetic GaAs QW and vice versa. Magneto-photoluminescence studies demonstrate level anticrossing and strong intermixing resulting in a… 
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  • Ferreira, Bastard
  • Physics, Materials Science
    Physical review. B, Condensed matter
  • 1991
It is shown that size quantization along the growth axis leads to a drastic quenching of the ``spin''-flip scattering, which results in hole `` Spin-Flip relaxation times, which can be much longer than the recombination time when the hole in-plane kinetic energy is small compared with the separation distance.