Abstract
Far-infrared magnetotransmission measurements are carried out on modulation-doped wide parabolic AlxGa1-xAs quantum wells. We report the first observation of plasma-shifted cyclotron resonance in a semiconductor space-charge layer. The bulk carrier density deduced from the plasma frequency is found to be independent of the areal electron density. The homogeneity of the three-dimensional electron density is probed using this new resonant mode.
Original language | English (US) |
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Pages (from-to) | 12020-12023 |
Number of pages | 4 |
Journal | Physical Review B |
Volume | 40 |
Issue number | 17 |
DOIs | |
State | Published - 1989 |
All Science Journal Classification (ASJC) codes
- Condensed Matter Physics