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- W1989812408 abstract "We describe a photoluminescence study of a series of GaAs/AlAs/GaAs/AlAs/GaAs double-barrier heterostructures. We report the observation in double-barrier heterostructures of photoluminescence from the recombination of electrons at {ital X}-point levels localized in the AlAs barriers, with heavy holes localized in the GaAs quantum well. As the quantum-well width is decreased, the increasing confinement energy of the {Gamma}-point electron level in the quantum well results in increasing interaction with the {ital X}-point levels in the barriers. As the well width is decreased, the integrated {Gamma}-point photoluminescence intensity decreases, and then increases just before the {Gamma}-{ital X} crossover; further decrease in the well width results in monotonic decrease of intensity. This behavior is consistent with eight-band tight-binding calculations of the {Gamma}-point electron quasi-bound-state lifetime." @default.
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- W1989812408 date "1991-02-15" @default.
- W1989812408 modified "2023-09-26" @default.
- W1989812408 title "Effect of theXpoint on the escape of electrons from the quantum well of a double-barrier heterostructure" @default.
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- W1989812408 doi "https://doi.org/10.1103/physrevb.43.4856" @default.
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