Optical detection of the integer and fractional quantum Hall effects in GaAs
- 30 July 1990
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 65 (5) , 637-640
- https://doi.org/10.1103/physrevlett.65.637
Abstract
We report a definitive optical detection, using band-gap photoluminescence, of the integer and fractional quantum Hall effects in GaAs by a comprehensive study of integer states from ν=1 to 10 and the ν=2/3 hierarchy out to the 5/9 daughter state, in an ultrahigh-mobility single heterojunction at 120 mK.Keywords
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