Experimental Studies of Rhombohedral Cr₂S₃ Single Crystal. I. Magnetic Properties

Abstract

The magnetic properties of rhombohedral Cr₂S₃ single crystals were investigated. The remarkable temperature dependences of the small spontaneous magnetization, the magnetic susceptibilities and the resonance condition below Néel temperature were observed. Magnetic behavior of this compound can not be explained by a model of simple ferrimagnet. Assuming the two-sublattice model in which the Dzyaloshinsky-Moriya interaction and the difference in magnitude of the sublattice magnetizations are taken into account, the magnetization, the susceptibilities and the magnetic resonance condition were calculated. The exchange, Dzyaloshinsky-Moriya and anisotropy fields were determined.