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Oscillator strengths of dark charged excitons at low electron filling factors

Schüller, Christian, Broocks, K.-B., Heyn, Ch. and Heitmann, Detlef (2002) Oscillator strengths of dark charged excitons at low electron filling factors. Physical Review B (PRB) 65; 4, 081301.

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Other URL: http://link.aps.org/doi/10.1103/PhysRevB.65.081301


By direct absorption spectroscopy and comparison to photoluminescence (PL), we investigate negatively charged excitons in dilute two-dimensional electron systems at temperatures down to T = 40 mK in the regime of the fractional quantum Hall effect. At very low temperatures, for filling factor nu<1/3, an additional excitation appears in the PL spectrum, between the well-known singlet and triplet ...


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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
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Keywords:aluminium compounds, gallium arsenide, semiconductor quantum wells, III-V semiconductors, oscillator strengths, excitons, photoluminescence, light absorption, two-dimensional electron gas, quantum Hall effect, triplet state
Dewey Decimal Classification:500 Science > 530 Physics
Created at the University of Regensburg:Unknown
Item ID:9496
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