Evidence of re-entrant spin-glass behavior in the GdAgGa compound

Magnetic phenomena in equiatomic ternary rare earth compounds

“…Time dependence of magnetization relaxation, the heat capacity, ACS and TMI results indicate the coexistence of re-entrant spinglass (RSG) phase with long range FM ordering. Similar to RAgAl compounds, the RSG behaviour in GdAgGa arises due to a random distribution of non-magnetic atoms resulting in disorder, inducing the non-uniform FM phase [339]. Fig.…”

“…Zygmunt et al [338] reported magnetic properties of RAgGa with R = Tb, Dy, Ho compounds, showing spin glass behaviour in TbAgGa and FM ordering in DyAgGa and HoAgGa compounds. Recently, França et al [339] studied detailed structural and magnetic properties of of GdAgGa compounds. The authors report FM ordering at 30 K and a field dependent anomaly below 14 K in GdAgGa compound.…”

“…shows the time dependence of the remanent magnetization measured after cooling the sample from room temperature to 5 K followed by application of magnetic field and switching it off before recording the data. The experimental data was fitted by a stretched exponential equation and different parameters were determined, indicating coexistence of SG and FM components [339]. Magnetometric and neutron diffraction measurements show that RAgSi (R=Gd-Tm)…”