Schüller, Christian and Broocks, Kay-Birger and Schröter, Patrick and Heyn, Christian and Heitmann, Detlef and Bichler, Max and Wegscheider, Werner and Chakraborty, Tapash and Apalkov, V. M.
Optical Probing of a Fractionally Charged Quasihole in an Incompressible Liquid.
Physical Review Letters (PRL) 91 (11), 116403 .
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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 ...
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