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Anomalous dispersion of charged excitons in dilute two-dimensional electron systems at low temperatures

Broocks, K.-B. and Schröter, P. and Heitmann, Detlef and Heyn, Ch. and Schüller, Christian and Bichler, Max and Wegscheider, Werner (2002) Anomalous dispersion of charged excitons in dilute two-dimensional electron systems at low temperatures. Physical Review B (PRB) 66; 4 , 041309.

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Other URL: http://link.aps.org/doi/10.1103/PhysRevB.66.041309


Abstract

We report the observation of a strong anomaly in the magnetic-field dispersion of negatively charged excitons in dilute two-dimensional electron systems. The anomaly exists in an intermediate density range around 1×1011 cm–2, and at temperatures T<1 K, only. The strength of the anomaly at T = 0.1 K is about 2.5 meV, and the most striking feature is that it can be completely destroyed by a ...

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Item Type:Article
Date:29 July 2002
Institutions:Physics > Institute of Experimental and Applied Physics > Chair Professor Lupton > Group Christian Schüller
Identification Number:
ValueType
10.1103/PhysRevB.66.041309DOI
Keywords:excitons, two-dimensional electron gas, quantum Hall effect, photoluminescence, absorption
Subjects:500 Science > 530 Physics
Status:Published
Refereed:Unknown
Created at the University of Regensburg:Unknown
Owner: Martin Kaiser
Deposited On:21 Sep 2009 07:16
Last Modified:13 Mar 2014 11:01
Item ID:9495
Owner Only: item control page
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