Anomalous cyclotron resonance linewidth in heterojunctions displaying the fractional quantum Hall effect
- 20 March 1985
- journal article
- Published by IOP Publishing in Journal of Physics C: Solid State Physics
- Vol. 18 (8) , L175-L179
- https://doi.org/10.1088/0022-3719/18/8/002
Abstract
The authors report anomalous structure in the cyclotron resonance linewidth as a function of filling factor for very high-mobility GaAs-AlGaAs heterojunctions, using far infrared transmission at T=1.4K. These structures are found at or near the filling factors where the fractional quantum Hall effect (FQHE) in these samples occurs ( nu =4/3, 5/3 and 7/3). The cyclotron effective mass shows no anomalies at those filling factors. An attempt has been made to explain this in the context of the theories on the origin of the FQHE.Keywords
This publication has 17 references indexed in Scilit:
- Primitive and composite ground states in the fractional quantum hall effectSurface Science, 1984
- Statistics of Quasiparticles and the Hierarchy of Fractional Quantized Hall StatesPhysical Review Letters, 1984
- Calculation of the cyclotron resonance linewidth in GaAsAlGaAs heterostructuresSolid State Communications, 1983
- Subband-Landau-Level Coupling in a Two-Dimensional Electron GasPhysical Review Letters, 1983
- Observation of oscillatory linewidth in the cyclotron resonance of GaAsAlxGa1−xAs heterostructuresSolid State Communications, 1983
- Cyclotron resonance linewidth in a two-dimensional electron gasSurface Science, 1982
- New Method for High-Accuracy Determination of the Fine-Structure Constant Based on Quantized Hall ResistancePhysical Review Letters, 1980
- Theory of intersubband cyclotron combined resonances in the silicon space-charge layerPhysical Review B, 1979
- Theory of Quantum Transport in a Two-Dimensional Electron System under Magnetic Fields. I. Characteristics of Level Broadening and Transport under Strong FieldsJournal of the Physics Society Japan, 1974
- Cyclotron Resonance and de Haas-van Alphen Oscillations of an Interacting Electron GasPhysical Review B, 1961