Characterization of the electron gas in wide parabolic GaAs/AlxGa1-xAs quantum wells
Abstract
We demonstrate the production of a thick layer of high-mobility electron gas by comparison of Shubnikov-de Haas oscillations with self-consistent calculations of the ground-state energy levels. Ion-gauge measurements of the average Al flux during a programmed growth sequence show that the Al profile for the parabolic-well structures studied here follows the design profile closely. The calculated and measured energy levels (EF-Ei) agree within the uncertainty of the well parameters.
- Publication:
-
Physical Review B
- Pub Date:
- May 1990
- DOI:
- 10.1103/PhysRevB.41.10700
- Bibcode:
- 1990PhRvB..4110700G
- Keywords:
-
- 72.20.My;
- 73.20.Dx;
- 71.25.Hc;
- Galvanomagnetic and other magnetotransport effects