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- DOI zum Zitieren dieses Dokuments:
- 10.5283/epub.9621
Zusammenfassung
We review our optical experiments on two-dimensional electron systems (2DES) of different mobilities, realized in modulation-doped GaAs-AlGaAs single quantum wells, in quantizing magnetic fields. The carrier densities of the 2DESs could be tuned in quite broad range between about 1 x 10(10) cm(-2) via gate electrodes. In photoluminescence (PL) and absorption experiments on 2DES with moderate ...

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