Physics – Condensed Matter – Mesoscale and Nanoscale Physics
Scientific paper
1998-04-06
Physics
Condensed Matter
Mesoscale and Nanoscale Physics
14 pages including 5 figures. To appear in the April 15th edition of Phy. Rev. B. rapid comm
Scientific paper
10.1103/PhysRevB.57.R9467
We report an anomalous doublet structure and low-energy satellite in the magneto-photoluminescence spectra of a two-dimensional electron system. The doublet structure moves to higher energy with increasing magnetic field and is most prominent at odd filling factors 5 and 3. The lower-energy satellite peak tunes to lower energy for increasing magnetic field between filling factor 6 and 2. These features occur at energies below the fundamental band of recombination originating from the lowest Landau level and display striking magnetic field and temperature dependence that indicates a many-body origin. Drawing on a recent theoretical description of Hawrylak and Potemski, we show that distinct mechanisms are responsible for each feature.
Goldberg Bennett B.
Manfra Michael J.
Pfeiffer Loren
West Ken
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