Abstract
We report on a magnetophotoluminescence study of an n-type modulation doped (Formula presented) quantum-well structure in which a dense electron gas populates the AlAs X valleys. The interband transitions in this system are type II and exhibit GaAs and AlAs LO-phonon replicas. In the presence of a magnetic field applied perpendicular to the structure’s layers luminescence features associated with the l=0 and l=1 Landau levels of the AlAs (Formula presented) valleys were resolved. The slope (Formula presented) of these transitions yield an in-plane effective mass (Formula presented) of 0.44.
| Original language | English |
|---|---|
| Pages (from-to) | 7546-7550 |
| Number of pages | 5 |
| Journal | Physical Review B - Condensed Matter and Materials Physics |
| Volume | 59 |
| Issue number | 11 |
| DOIs | |
| State | Published - 1999 |
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