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- Title
Anomalous Fluctuations of 2D-Electron Recombination Radiation Intensity in the Quantum Hall Regime.
- Authors
Volkov, O. V.; Kukushkin, I. V.; Lebedev, M. V.; Lesovik, G. B.; von Klitzing, K.; Eberl, K.
- Abstract
Anomalous intensity fluctuations are observed in the spectrum of radiative recombination of quasi-two-dimensional (2D) electrons with photoexcited holes in a single quantum well. The fluctuations are observed exclusively under the conditions of the quantum Hall effect (QHE). It is shown that, if the QHE conditions are not fulfilled, the radiation intensity fluctuates strictly following the Poisson distribution (<δN[sup 2]> / <N> = 1), whereas in the QHE regime the fluctuation amplitude increases by several orders of magnitude (<δN[sup 2]> / <N>∼10[sup 2]). It is demonstrated that the maxima of the emission noise amplitude coincide with the maxima of inverse magnetoresistance of 2D electrons in the QHE regime and correspond to establishing an anomalously high uniformity of the system. © 2000 MAIK “Nauka / Interperiodica”.
- Subjects
QUANTUM Hall effect; ION recombination; RADIATION
- Publication
JETP Letters, 2000, Vol 71, Issue 9, p383
- ISSN
0021-3640
- Publication type
Article
- DOI
10.1134/1.568360