Fermi-edge singularity of two dimensional electrons in asymmetric coupled double quantum wells
β Scribed by J.I. Lee; H.-K. Na; K.-S. Lee; E.-H. Lee; H.G. Lee; C.-D. Song
- Publisher
- Elsevier Science
- Year
- 1995
- Tongue
- English
- Weight
- 424 KB
- Volume
- 35
- Category
- Article
- ISSN
- 0921-5107
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π SIMILAR VOLUMES
With far-infrared Fourier transform spectroscopy we study the subband structure of electrons in two modulation doped GaAs/Ga,-,Al,As quantum wells which are coupled through a thin AlAs barrier grown in the center of the active GaAs layer. To facilitate the interpretation of the experimental results
Vertically stacked quantum point contacts (QPCs) are prepared by atomic force microscope (AFM) lithography from an asymmetric GaAs/AlGaAs double quantum well (DQW) heterostructure. Top-and back-gate voltages are used to tune the tunnel-coupled QPCs, and back-gate bias cooling is employed to investig