Details
| Original language | English |
|---|---|
| Pages (from-to) | 271-280 |
| Number of pages | 10 |
| Journal | physica status solidi (b) |
| Volume | 173 |
| Issue number | 1 |
| Publication status | Published - 1 Sept 1992 |
| Externally published | Yes |
Abstract
The radiative recombination of two‐dimensional electrons is studied in GaAs–GaAlAs heterojunctions with holes localised on acceptors in strong magnetic fields. The optical measurements are emphasized as a probe of the properties of the two‐dimensional electron layer. In the case of two subbands occupied, spatial changes in the self‐consistent potential due to a population in the second subband are demonstrated. In the regime of the fractional quantum Hall effect, downward cusps occur in the mean energy of the luminescence at fractional filling factors and values for the quasiparticle energy gaps are derived.
ASJC Scopus subject areas
- Materials Science(all)
- Electronic, Optical and Magnetic Materials
- Physics and Astronomy(all)
- Condensed Matter Physics
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In: physica status solidi (b), Vol. 173, No. 1, 01.09.1992, p. 271-280.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Luminescence Measurements of Two‐Dimensional Electrons in the Regime of the Integer and Fractional Quantum Hall Effects
AU - Pulsford, N. J.
AU - Kukushkin, I. V.
AU - Hawrylak, P.
AU - Ploog, K.
AU - Haug, R. J.
AU - von Klitzing, K.
AU - Timofeev, V. B.
PY - 1992/9/1
Y1 - 1992/9/1
N2 - The radiative recombination of two‐dimensional electrons is studied in GaAs–GaAlAs heterojunctions with holes localised on acceptors in strong magnetic fields. The optical measurements are emphasized as a probe of the properties of the two‐dimensional electron layer. In the case of two subbands occupied, spatial changes in the self‐consistent potential due to a population in the second subband are demonstrated. In the regime of the fractional quantum Hall effect, downward cusps occur in the mean energy of the luminescence at fractional filling factors and values for the quasiparticle energy gaps are derived.
AB - The radiative recombination of two‐dimensional electrons is studied in GaAs–GaAlAs heterojunctions with holes localised on acceptors in strong magnetic fields. The optical measurements are emphasized as a probe of the properties of the two‐dimensional electron layer. In the case of two subbands occupied, spatial changes in the self‐consistent potential due to a population in the second subband are demonstrated. In the regime of the fractional quantum Hall effect, downward cusps occur in the mean energy of the luminescence at fractional filling factors and values for the quasiparticle energy gaps are derived.
UR - http://www.scopus.com/inward/record.url?scp=84987142857&partnerID=8YFLogxK
U2 - 10.1002/pssb.2221730127
DO - 10.1002/pssb.2221730127
M3 - Article
AN - SCOPUS:84987142857
VL - 173
SP - 271
EP - 280
JO - physica status solidi (b)
JF - physica status solidi (b)
SN - 0370-1972
IS - 1
ER -