Controlled formation and characteristics of interfaces in GaAs/AlGaAs single quantum wells
β Scribed by Xinghua Wang; Houzhi Zheng; Tao Yu; Reino Laiho
- Publisher
- Elsevier Science
- Year
- 1994
- Tongue
- English
- Weight
- 280 KB
- Volume
- 75
- Category
- Article
- ISSN
- 0169-4332
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Magneto-photoluminescence (PL) experiments of very thin GaAs/Al 0.3 Ga 0.7 As quantum wells were performed in a magnetic field (B) of up to 20 T. It has been observed that the diamagnetic shift changes abruptly from Ξ² B 2 to Ξ± B around 5 T as B increases, and both Ξ± and Ξ² become larger as the well-w
H.A. Nickel 1 ) (a), G.S. Herold (a), T. Yeo (a), G. Kioseoglou (a), Z.X. Jiang (a), B.D. McCombe (a), A. Petrou (a), D. Broido (b), and W. Schaff (c)
We report the first measurements of the interaction of non-equilibrium phonons with twodimensional exciton gases (2DExGs). The rise in the effective temperature of the 2DExG produced by the phonons depends on the width of the quantum well and the exciton sheet density and hence on the ratio 5 -l (ex