LAUSR

Abstract In this work, field and temperature-dependent magnetization and specific heat measurements carried out on the DyNi3Ga9 intermetallic compound grown by Ga self-flux method are reported. This material crystallizes in a trigonal ErNi3Al9-type crystal structure with space group R 32 . In our previous work, we have shown that the DyNi3Ga9 compound, which orders antiferromagnetically at T N  = 10.1 K presents strong crystalline electric field (CEF) effects. At H = 1 kOe, the low-T dependence of magnetic susceptibility (T  M ( H ) curves measured at selected temperatures for the magnetic field applied in the ab-plane show multiples transitions suggesting possible spin reorientations. Besides, for the low field M ( H ) loops one can observe the presence of coercivity, remanence and saturation effects evidencing the complex magnetic ordered state of this compound. Finally, specific heat measurements as a function of applied magnetic field show the emergence of a second peak suggesting the presence of field-induced transitions for H > 15 kOe.