THE ELECTRON AND HOLE G-FACTORS IN CDTE CDMGTE QUANTUM-WELLS AND CDTE/ZNTE IRREGULAR SUPERLATTICE STRUCTURES/

Single CdTe/CdMgTe quantum well (QW) structure and CdTe/ZnTe irregular superlattice structures grown by molecular beam epitaxy are investiga ted by stationary and time-resolved photoluminescence in the presence of an applied magnetic field. We study the well width dependence of th e electron and hole g-factors by combining Zeeman measurements and the recently developed spin quantum beats technique. The experimental res ults show that both the electron and hole g-factors have the same sign in wide QWs and increase with decreasing well width. It is also found that the hole g-factor of the excited excitonic states is significant ly larger than the hole g-factor of the ground excitonic state in the irregular superlattice structure. (C) 1998 Elsevier Science B.V. All r ights reserved.