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- W2364482148 abstract "The photoluminescence of (GaAs)_m/(AlAs)_n short-period superlattices (SLs) are studiedunder hydrostatic pressure in the range of 0-50 kbar.The dependence of the difference betweenconduction band Γ-like and X-like levels on the SL period length is obtained independenton which level is higher. The Γ-X crossover is for the first time observed at atmosphericpressure and at room temperature in a (GaAs)_(11)/(AlAs)_(11)SL.The relative probability for X-like and Γ-like transitions at the Γ-X overcrossing may be derived from the pressure dependenceof the corresponding luminescence intensities.It is found that the ratio of the two transitionprobabilities increases gradually from 1.4×10~(-4) for (GaAs)_(17)/(AlAs)_(17) to 4.6×10~(-3)for(GaAs)_6/(AlAs)_6.It shows that the mixing between Γ-like and X-like states is quite small. Theexperimental results are briefly discussed." @default.
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- W2364482148 date "1990-01-01" @default.
- W2364482148 modified "2023-09-26" @default.
- W2364482148 title "Photoluminescence Studies of GaAs/AlAs Short Period Superlattices under Hydrostatic Pressure" @default.
- W2364482148 hasPublicationYear "1990" @default.
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