Commensurability oscillations in magnetoplasmons of a density-modulated two-dimensional electron gas
- 4 December 1989
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 63 (23), 2598-2601
- https://doi.org/10.1103/physrevlett.63.2598
Abstract
The intra-Landau-band magnetoplasma spectrum of a periodically density-modulated two-dimensional electron gas is shown to exhibit unusual oscillatory behavior. Such oscillations (periodic in 1/B) are seen to arise from the commensurability of the spatial period of the modulation with the cyclotron-orbit size at the Fermi level.Keywords
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