HIGH MAGNETIC FIELD STUDY OF EXCITON COMPLEXES IN DILUTED MAGNETIC CdZnTe/(Cd,Zn,Mn)Te QUANTUM WELLS

Abstract

We measured the polarization selective photo-luminescence (PL) and the reflection spectra in the diluted magnetic semiconductor CdZnTe /( Cd , Zn , Mn ) Te quantum well under the high magnetic field of up to 40 T. A double peak structure was observed in PL spectra. The higher energy peak could be assigned to the exciton level from the behavior of Zeeman shift or polarization degree. The lower energy peak could not be explained by J=0 biexciton state. We could determined that this peak was due to the charged exciton from the results of the polarization selective reflection measurement.