Condensation of indirect excitons in coupled AlAs/GaAs quantum wells

L. Butov , A. Zrenner , G. Böhm , G. Weimann

The photoluminescence (PL) of excitons confined in an electric field tunable coupled AlAs/GaAs quantum well has been investigated at T[MATH]350 mK and magnetic field H[MATH]14 T. In the indirect regime when electrons and holes are separated both in real- and in k-space, magnetic field was found to result in (i) a strong change of both the PL intensity and decay time which is attributed to the anomalies in the exciton transport and (ii) an appearance of a huge broad band noise in the PL intensity which is an evidence of exciton condensation.

Domaines: Articles anciens

L. Butov, A. Zrenner, G. Böhm, G. Weimann. Condensation of indirect excitons in coupled AlAs/GaAs quantum wells. Journal de Physique IV Proceedings, 1993, 03 (C5), pp.C5-167-C5-170. ⟨10.1051/jp4:1993530⟩. ⟨jpa-00251616⟩