Collective response in the microwave photoconductivity of Hall bar structures
- 15 December 1993
- journal article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 48 (23) , 17145-17148
- https://doi.org/10.1103/physrevb.48.17145
Abstract
We have investigated the microwave photoconductivity of 100-ìm- and 50-ìm-wide Hall bars fabricated from GaAs/AlxGa1-xAs heterostructures. We found resonant responses at frequencies fres with fres2(B) =fres2(B=0)+fc2, where fc is the cyclotron frequency of the two-dimensional electron gas in the perpendicularly applied magnetic field B. This shows that the photoresponse is dominated by collective plasmon excitations confined within the width of the Hall structureKeywords
This publication has 12 references indexed in Scilit:
- Nonequilibrium edge-state transport resolved by far-infrared microscopyPhysical Review Letters, 1993
- Novel far-infrared-photoconductor based on photon-induced interedge channel scatteringApplied Physics Letters, 1991
- Electron-spin resonance in the two-dimensional electron gas of GaAs-As heterostructuresPhysical Review B, 1988
- Cyclotron resonance from the far-infrared transmission and the photoconductivity of a two-dimensional electron gas in a GaAs/AlGaAs heterojunctionSolid State Communications, 1984
- Electron Spin Resonance onHeterostructuresPhysical Review Letters, 1983
- Observation of cyclotron resonance in the photoconductivity of two-dimensional electronsApplied Physics Letters, 1982
- Mechanism of intersubband resonant photoresponsePhysical Review B, 1979
- Two-dimensional magnetoplasmon in the silicon inversion layerSolid State Communications, 1977
- Observation of the Two-Dimensional Plasmon in Silicon Inversion LayersPhysical Review Letters, 1977
- Polarizability of a Two-Dimensional Electron GasPhysical Review Letters, 1967