Dr. Yakovlev et al., BOUND AND UNBOUND EXCITON-ELECTRON STATES IN II-VI QUANTUM-WELL STRUCTURES WITH A 2DEG, Journal of crystal growth, 185, 1998, pp. 818-821
Optical tuning of electron concentration in a quantum well is realized
in CdTe/(Cd,Mg)Te heterostructures. Effects governed by the exciton-e
lectron interaction at low electron density are studied by use of phot
oluminescence and reflectivity in magnetic fields and under microwave
radiation. Experimental manifestations of bound (negatively charged ex
citons) and unbound (combined exciton-cyclotron resonance) exciton-ele
ctron states are discussed, (C) 1998 Elsevier Science B.V. All rights
reserved.