A. Lemaitre et al., CHARACTERIZATION OF NORMAL AND INVERTED INTERFACES BY THE ZEEMAN-EFFECT IN CD1-XMNXTE CDTE/CD1-YMGYTE QUANTUM-WELLS/, Physical review. B, Condensed matter, 57(8), 1998, pp. 4708-4712
We present a study of che interface profile in asymmetric Cd1-xMnxTe/C
dTe/Cd1-yMgyTe quantum wells, with normal (Cd1-xMnxTe on CdTe) and inv
erted (CdTe on Cd1-xMnxTe) interfaces, The Zeeman spectra of the confi
ned exciton states were determined by magnetoreflectivity and Kerr rot
ation measurements. Using a segregation model and an asymmetric expone
ntial profile, we interpret the Zeeman spectra of quantum wells, and d
etermine the interface widths. For the same concentrations of Mn in th
e barriers and the same growth conditions, the results can be coherent
ly explained assuming an interface width independent of the quantum-we
ll width and the type of interface (normal or inverted). [S0163-1829(9
8)04607-4].