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Auger-like relaxation of inter-Landau-level magnetoplasmon excitations in the quantized Hall regime
- Source :
- Physical Review B. 60:7760-7763
- Publication Year :
- 1999
- Publisher :
- American Physical Society (APS), 1999.
-
Abstract
- Auger relaxation in 2D strongly correlated electron gas can be represented as an Auger-like process for neutral magnetoplasmon excitations. The case of "dielectric" state with lack of free electrons (i.e. at integer filling $\nu$) is considered. Really the Auger-like process is a coalescence of two magnetoplasmons which are converted into a single one of a different plasmon mode with zero 2D wave-vector. This event turns out to be energetically allowed for magnetoplasmons near their roton minima where the spectrum has the infinite density of states. As a result the additional possibility appears for indirect observation of the magnetorotons by means of anti-Stokes Raman scattering. We find the rate of this process employing the technique of Excitonic Representation for the relevant matrix element calculation.<br />Comment: 4 pages
- Subjects :
- Free electron model
Physics
Condensed Matter - Mesoscale and Nanoscale Physics
Condensed matter physics
FOS: Physical sciences
Landau quantization
Condensed Matter::Mesoscopic Systems and Quantum Hall Effect
Roton
symbols.namesake
Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
symbols
Quasiparticle
Density of states
Atomic physics
Fermi gas
Plasmon
Raman scattering
Subjects
Details
- ISSN :
- 10953795 and 01631829
- Volume :
- 60
- Database :
- OpenAIRE
- Journal :
- Physical Review B
- Accession number :
- edsair.doi.dedup.....3557e11863f5fff751fac0d36b8c3627