Magnetic Properties of DyCl₃ and HoCl₃ Single Crystals

Abstract

The principal magnetic susceptibilities and anisotropy of single crystals of DyCl₃ and HoCl₃ are computed in the temperature range 70–300°K, considering that a trigonal electric field of C_3h symmetry exists about the free ion. The anisotropy is found to increase with the decrease of temperature. Furthermore, the variation of mean magnetic moment with temperature is studied which remains constant over a wide range of temperature in both the compounds. The computed value of the magnetic moment at room temperature is 10.63 B. M. for DyCl₃ and 10.87 B. M. for HoCl₃ which are in good agreement with free ion values 10.62 B. M. and 10.60 B. M. respectively. Following crystal field parameters are used in these calculations.
(Remark: Graphics omitted.)