Resonant Raman scattering by phonons in a strong magnetic field: GaAs
- 10 August 1987
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 59 (6), 700-703
- https://doi.org/10.1103/physrevlett.59.700
Abstract
We have measured Raman scattering by LO phonons in GaAs in a magnetic field (≤12.8 T) at 10 K. The intensity displays Landau-level oscillations. This effect shows promise as a modulation technique for the investigation of interband magnetoabsorption. As an application we have studied the nonparabolicity of the conduction band of GaAs for energies up to 0.4 eV above its bottom. Standard k⋅p expansions, including the and conduction and the valence bands, cannot explain the observed dispersion. It can be explained by inclusion of interactions with higher bands.
Keywords
This publication has 20 references indexed in Scilit:
- Resonance Raman scattering in GaAs-As superlattices: Impurity-induced Fröhlich-interaction scatteringPhysical Review B, 1987
- Magnetic-field-enhanced Raman scattering by confined and interface phonons in semiconductor superlatticesPhysical Review B, 1987
- Resonance Raman scattering by optical phonons in GaAs near theband gapPhysical Review B, 1987
- Band-structure determination of GaAs from hot-electron luminescencePhysical Review B, 1986
- Raman Scattering Resonant with Quasi-Two-Dimensional Excitons in Semiconductor Quantum WellsPhysical Review Letters, 1983
- The electron effective mass in heavily doped GaAsJournal of Physics C: Solid State Physics, 1979
- Resonant Raman scattering in GaAsPhysical Review B, 1978
- Stress-Modulated Magnetoreflectivity of Gallium Antimonide and Gallium ArsenidePhysical Review B, 1972
- Split-Off Valence-Band Parameters for GaAs from Stress-Modulated MagnetoreflectivityPhysical Review B, 1970
- Nonparabolicity of theConduction Band in Germanium from Magnetopiezotransmission ExperimentsPhysical Review Letters, 1967