G. Finkelstein et al., SHAKE-UP PROCESSES OF A 2-DIMENSIONAL ELECTRON-GAS IN GAAS ALGAAS QUANTUM-WELLS AT HIGH MAGNETIC-FIELDS/, Physica. B, Condensed matter, 251, 1998, pp. 575-579
Shake-up processes in the photoluminescence spectra of a two-dimension
al electron gas in a GaAs/AlGaAs quantum well at high magnetic fields
are studied at a range of filling factors. We find that when the elect
rons occupy only the lowest Landau level these processes are strongly
suppressed. A peculiar dependence of a giant 'zeroth' shake-up line on
temperature and filling factor is reported. (C) 1998 Elsevier Science
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