Edge magnetoplasmons in the fractional-quantum-Hall-effect regime
- 15 May 1990
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 41 (14) , 10287-10290
- https://doi.org/10.1103/physrevb.41.10287
Abstract
We report the observation of resonant edge excitations of a high-mobility two-dimensional electron system in the regime of the fractional quantum Hall effect. Narrow edge resonances are observed only on fractional or integer Hall plateaus and have a resonance frequency proportional to the quantized Hall conductivity. We interpret our results using a new theory of edge magnetoplasmons in the quantum Hall regime.Keywords
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