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Microwave response of two-dimensional electron rings

Kovalskii, V. A ; Gubarev, S. I. ; Kukushkin, I. V. ; Mikhailov, Sergey A. ; Smet, J. H. ; Klitzing, Klaus von ; Wegscheider, Werner
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Date of publication of this fulltext: 25 Jan 2010 13:13


Abstract

We report microwave absorption studies on rings containing two-dimensional electrons. The absorption is measured on single rings with different widths using an optical luminescence technique. The dispersion of the plasmon modes has been determined in the presence of a perpendicular magnetic field. The transformation of two-dimensional plasmons in the disk geometry into plasmons with ...

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