We study the low-temperature in-plane magnetoconductance of vertically coupled double quantum wires. Using a novel flip-chip technique, the wires are defined by two pairs of mutually aligned split gates on opposite sides of a β€1 micron thick AlGaAs/GaAs double quantum well heterostructure. We observ
Magnetization of disordered ballistic quantum billards
β Scribed by Daniel Braun; Yuval Gefen; Gilles Montambaux
- Publisher
- John Wiley and Sons
- Year
- 1994
- Tongue
- English
- Weight
- 854 KB
- Volume
- 506
- Category
- Article
- ISSN
- 0003-3804
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π SIMILAR VOLUMES
In this paper we analyze the valence bandstructure of a disordered single quantum-well. We use the finite-element method for calcuiating the bandstructure. The variation of the subband structure with the diffusion length is shown to be important through the effective mass variation. (c) 1995 Academ
We study semiconductor quantum-well samples with different disorder strengths by coherent excitation spectroscopy with particular emphasis on disorder-mediated couplings of exciton subensembles. Our experiments show that there is no coherent coupling of excitons in different quantum islands and in a