Zeeman tuning of II–VI-based diluted magnetic semiconductor superlattices

Electronic levels in II–VI-based diluted magnetic semiconductors (DMSs, e.g. Zn1−xMnxTe) experience extremely large Zeeman shifts when a magnetic field is applied, reaching values of the order of 100 meV at low temperatures. Zeeman shifts of the conduction and the valence band can then have profound consequences on the properties of DMS/non-DMS superlattices, since they provide the opportunity of tuning the band alignment in such structures simply by varying the applied field. We discuss the consequences of such Zeeman-tuning, with emphasis on the creation of spatial spin modulation and on mapping of wave function distribution in superlattices.