CuCr2-xSbxS4 and Cu1-ySbyCr2S4 solid solutions with the spinel structure we
re synthesized, and their magnetic and electrical properties were studied.
The limits of solid solutions in these systems were found to be x = 0.5 and
y = 0.22. Models of the cation distributions in the solid solutions are pr
oposed. The CuCr2-xSbxS4 solid solutions with 0.10 < x < 0.15 are magnetic
semiconductors with high ferromagnetic ordering temperatures.