Abstract
The spectra of edge magnetoplasma excitations in two-dimensional (2D) electron disks have been analyzed by the method of optical detection of resonant microwave absorption. The magnetic dispersion of an edge magnetoplasmon in samples with a high 2D electron density is found to be poorly reproduced by existing theoretical models. Analysis of the magnetic-field dependence of the linewidth of resonant microwave absorption for samples with various 2D electron densities shows that the inverse width of the main mode of resonant microwave absorption is universally proportional to the Hall resistance of 2D electrons.
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Original Russian Text © M.N. Khannanov, V.A. Koval’skiĭ, I.V. Kukushkin, S.I. Gubarev, J.H. Smet, K. von Klitzing, 2006, published in Pis’a v Zhurnal Éksperimental’noĭ i Teoreticheskoĭ Fiziki, 2006, Vol. 84, No. 4, pp. 261–265.
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Khannanov, M.N., Koval’skiĭ, V.A., Kukushkin, I.V. et al. Universal relation between hall conductivity and the damping constant of edge magnetoplasma resonances. Jetp Lett. 84, 226–230 (2006). https://doi.org/10.1134/S0021364006160132
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DOI: https://doi.org/10.1134/S0021364006160132