Quantized dispersion of two-dimensional magnetoplasmons detected by photoconductivity spectroscopy |
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| Authors: | Holland S Heyn Ch Heitmann D Batke E Hey R Friedland K J Hu C-M |
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| Institution: | Institut für Angewandte Physik und Zentrum für Mikrostrukturforschung, Universit?t Hamburg, Jungiusstrasse 11, 20355 Hamburg, Germany. |
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| Abstract: | We find that the long-wavelength magnetoplasmon, resistively detected by photoconductivity spectroscopy in high-mobility two-dimensional electron systems, deviates from its well-known semiclassical nature as uncovered in conventional absorption experiments. A clear filling-factor dependent plateau-type dispersion is observed that reveals a so far unknown relation between the magnetoplasmon and the quantum Hall effect. |
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