We study the photoluminescence spectrum of a low-density (ν< 1) two-dimensional electron
gas at high magnetic fields and low temperatures. We find that the spectrum in the fractional …

We report the observation of Coulomb interaction effects on the photoluminescence (PL)
spectra of two-dimensional electron systems close to the ν= 1 quantum Hall state …

Photoluminescence spectra in two-dimensional systems in the quantum Hall regime ν>~ 2
are studied using a numerical diagonalization method, where ν is the filling factor. The first …

Polarization-resolved magnetoluminescence, together with simultaneous magnetotransport
measurements, have been performed on a two-dimensional electron gas (2DEG) confined …

The evolution of the 2DEG-hole magneto-photoluminescence (PL) with decreasing 2DEG
density is studied in a high quality 25 nm-wide modulation-doped GaAs/AlGaAs quantum …

Magnetophotoluminescence (MPL) studies as a function of carrier concentration are
reported for a series of very high mobility n-type modulation-doped GaAs/(Al, Ga) As single …

The circular polarization of excitonic luminescence is studied in CdTe/Cd 1− x Mg x Te
quantum wells with excess electrons of low density in an external magnetic field. It is …

Understanding the many-body behaviors of interacting electron systems remains one of the
central topics in condensed matter physics. Novel correlated phases coupled to lattice …

We review our optical experiments on two‐dimensional electron systems (2DES) of different
mobilities, realized in modulation‐doped GaAs–AlGaAs single quantum wells, in quantizing …

We study the photoluminescence spectrum of a low density (ν< 1) two-dimensional electron
gas at high magnetic fields and low temperatures. We find that the spectrum in the fractional …