Optical Probing of a Fractionally Charged Quasihole in an Incompressible Liquid

DOI zum Zitieren dieses Dokuments:: 10.5283/epub.12755

Schüller, Christian ; Broocks, Kay-Birger ; Schröter, Patrick ; Heyn, Christian ; Heitmann, Detlef ; Bichler, Max ; Wegscheider, Werner ; Chakraborty, Tapash ; Apalkov, V. M.

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Veröffentlichungsdatum dieses Volltextes: 08 Feb 2010 13:31

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Zusammenfassung

In photoluminescence spectroscopy of a low-mobility two-dimensional electron gas subjected to a quantizing magnetic field, we observe an anomaly around nu= (1/3) at a very low temperature (0.1 K) and an intermediate electron density (0.9×1011 cm–2). The anomaly is explained as due to perturbation of the incompressible liquid at the Laughlin state due to close proximity of a localized charged ...