Significant enhancement of the magnetic correlation range in [ZnTe|MnTe] magnetic semiconductor superlattices is produced by introduction of Cl during growth. Results of Cl added to the ZnTe layers alone, to both layers, and to a partial MnTe layer suggests that the magnetism arises from an exchange mechanism dependent on the electronic states in addition to conventional superexchange.
Bibliographical noteFunding Information:
The authors gratefully acknowledge the support of the National Science Foundation through Grant DMR98-03218.
- Spin correlations
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics