Author/Authors :
V.P. Kochereshko، نويسنده , , G.V. Astakhov، نويسنده , , D.R. Yakovlev، نويسنده , , W. Ossau، نويسنده , , A. Waag and G. Landwehr ، نويسنده , , W. Faschinger، نويسنده , , T. Wojtowicz، نويسنده , , G. Karczewski، نويسنده , , J. Kossut، نويسنده ,
Abstract :
In modulation-doped quantum well structures with electron concentration of about View the MathML source, a new resonant optical transition involving four particles (one hole and three electrons) was found in external magnetic fields in photoluminescence excitation and reflectivity spectra. This transition reveals as a narrow line between exciton and trion lines. It is identified with a combined process in which a photocreated exciton binds with an electron forming a trion and promotes for the second electron a transition to higher Landau levels.
