Abstract
Strong resonant enhancements of inelastic light scattering from the long wavelength inter-Landau level magnetoplasmon and the intra-Landau level spin wave excitations are seen for the fractional quantum Hall state at ν = 1/3. The energies of the sharp peaks (FWHM 0.2 meV) in the profiles of resonant enhancement of inelastic light scattering intensities coincide with the energies of photoluminescence bands assigned to negatively charged exciton recombination. To interpret the observed enhancement profiles, we propose three-step light scattering mechanisms in which the intermediate resonant transitions are to states with charged excitonic excitations.
Original language | English (US) |
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Pages (from-to) | 799-803 |
Number of pages | 5 |
Journal | Solid State Communications |
Volume | 127 |
Issue number | 12 SPEC. |
DOIs | |
State | Published - Sep 2003 |
Externally published | Yes |
All Science Journal Classification (ASJC) codes
- General Chemistry
- Condensed Matter Physics
- Materials Chemistry
Keywords
- D. Charged excitons
- D. Fractional quantum Hall effect
- D. Resonance enhancement
- D. Spin excitations
- E. Inelastic light scattering