Cyclotron resonance at fractional Landau-level fillings

Cyclotron resonance at fractional Landau-level fillings

Distinct shifts of the cyclotron resonance position correlating with various fractional Landau-level fillings were observed for high-mobility electron space-charge layers in GaAs. In the magnetic quantum limit the shifts are reversed for incompressible liquids in the filling factor regimes ν<0.5...

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Bibliographic Details
Published in:Solid state communications Vol. 120; no. 11; pp. 463 - 467
Main Authors: Manger, M.F., Batke, E., Wegscheider, W.
Format: Journal Article
Language:English
Published: Oxford Elsevier Ltd 19-11-2001
Elsevier
Subjects:
A. Heterojunctions
A. Surfaces and interfaces
Collective excitations (including excitons, polarons, plasmons and other charge-density excitations)
Collective excitations (including plasmons and other charge-density excitations)
Condensed matter: electronic structure, electrical, magnetic, and optical properties
D. Cyclotron resonance
D. Electron–electron interactions
E. Light absorption and reflection
Electronic structure and electrical properties of surfaces, interfaces, thin films and low-dimensional structures
Exact sciences and technology
Physics
Surface and interface electron states
E. Light absorption and reflection
73.20.Dx
78.20.Ls
A. Heterojunctions
D. Cyclotron resonance
A. Surfaces and interfaces
D. Electron–electron interactions
Band structure
Gallium arsenides
Inorganic compounds
Semiconductor materials
Cyclotron resonance
Space charge
Binary compounds
Electron-phonon interactions
Landau levels
Fill factor
Renormalization
Effective mass
Carrier mobility
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Summary:Distinct shifts of the cyclotron resonance position correlating with various fractional Landau-level fillings were observed for high-mobility electron space-charge layers in GaAs. In the magnetic quantum limit the shifts are reversed for incompressible liquids in the filling factor regimes ν<0.5 and 0.5< ν<1. We propose an explanation based on a many-body induced renormalization of the electron effective mass.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:0038-1098
1879-2766
DOI:10.1016/S0038-1098(01)00415-X