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Resonant enhancement of inelastic light scattering in the fractional quantum Hall regime at ν=1/3

✍ Scribed by C.F. Hirjibehedin; Irene Dujovne; I. Bar-Joseph; A. Pinczuk; B.S. Dennis; L.N. Pfeiffer; K.W. West

Publisher
Elsevier Science
Year
2003
Tongue
English
Weight
439 KB
Volume
127
Category
Article
ISSN
0038-1098

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✦ Synopsis

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 n ¼ 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.

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