The Magnetic Properties of Chromium-Tellurium-Selenium System

Abstract

The change of magnetic properties due to the replacement of tellurium by selenium in CrTe, which has NiAs structure, was investigated. Ferromagnetism is observed in the concentration range from x=0 to x=0.8, where x is defined by Cr(Te_1−xSe_x). The compounds outside this range are para- or antiferromagnetic. In the paramagnetic range of temperature the Curie-Weiss law is found to be valid. It was also found that the Curie-Weiss constant is independent of concentration in the neighbourhood of CrTe and CrSe respectively, and varies abruptly at the transition concentration from ferro-to antiferromagnetic state. A short discussion are given.