Conference paper
Magnetic manifestations of carrier localization in quantum well
D.D. Awschalom, J. Warnock, et al.
QELS 1989
We have observed a sharp reduction of the photoluminescence linewidth from a two-dimensional exciton system (coupled GaAs/AlGaAs quantum wells), at a certain critical temperature (Tc) and under the influence of an electric field. We attribute this narrowing to a phase transition of the exciton system into an ordered state. The experiments suggest that a coherence length long enough to wash out the effect of the fluctuations, which cause the line broadening, is introduced below Tc. © 1990 The American Physical Society.
D.D. Awschalom, J. Warnock, et al.
QELS 1989
E. Mendez, F. Agulló-Rueda
Journal of Luminescence
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Physical Review Letters
E. Mendez, L.L. Chang, et al.
Surface Science