Holland S, Heyn C, Heitmann D, Batke E, Hey R, Friedland KJ, Hu CM. Quantized dispersion of two-dimensional magnetoplasmons detected by photoconductivity spectroscopy.
PHYSICAL REVIEW LETTERS 2004;
93:186804. [PMID:
15525193 DOI:
10.1103/physrevlett.93.186804]
[Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/28/2004] [Indexed: 05/24/2023]
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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