Photoluminescence Detected Doublet Structure in the Integer and Fractional Quantum Hall Regime
arXiv:cond-mat/9905365 · doi:10.1016/S0038-1098(99)00274-4
Abstract
We present here the results of polarized magneto-photoluminescence measurements on a high mobility single-heterojunction. The presence of a doublet structure over a large magnetic field range (2>nu>1/6) is interpreted as possible evidence for the existence of a magneto-roton minima of the charged density waves. This is understood as an indication of strong electronic correlation even in the case of the IQHE limit.
submitted to Solid State Communications