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arxiv: 1309.6426 · v1 · pith:CCOJ3RMUnew · submitted 2013-09-25 · ❄️ cond-mat.mes-hall

Magnetic control of Coulomb scattering and terahertz transitions among excitons

J. Bhattacharyya , S. Zybell , F. E{\ss}er , M. Helm , H. Schneider , L. Schneebeli , C. N. B\"ottge , B. Breddermann
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M. Kira S. W. Koch A. M. Andrews G. Strasser
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classification ❄️ cond-mat.mes-hall
keywords terahertzcoulombalgaasanalyzecomparisonscontrolcontrollabilitydetailed
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Time-resolved terahertz quenching studies of the magnetoexcitonic photoluminescence from GaAs/AlGaAs quantum wells are performed. A microscopic theory is developed to analyze the experiments. Detailed experiment-theory comparisons reveal a remarkable magnetic-field controllability of the Coulomb and terahertz interactions in the excitonic system.

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