THE PREPARATION AND PROPERTIES OF COBALT-DOPED II-VI CHALCOGENIDES

Samples of cobalt-doped ZnS, ZnSe, CdS, and CdSe were prepared by the direct combination of the elements. The limit of solubility of cobalt in these systems was established. Magnetic measurements indicate that the antiferromagnetic interactions of the cobalt in the zinc systems were greater than those observed in the cadmium chalcogenides. Single crystals of cobalt-doped zinc chalcogenides were grown by chemical vapor transport. Their IR transmission was measured and the cobalt concentration for maximum hardness was determined. © 1990 Academic Press, Inc.