Low-temperature Magnetization Dynamics in Shandite-type ferromagnet Co₃Sn₂S₂

We report on the comprehensive anisotropic magnetic properties of shandite-type ferromagnet Co₃Sn₂S₂ single crystals. The low temperature glass-like magnetic behaviour is observed in magnetization measurements. The inverse susceptibility exhibits a sharp downturn and non-linearity close to critical temperature Tc in the paramagnetic region implies the short-range ferromagnetic clusters present above Tc in Co₃Sn₂S₂. The deviation from linear Curie-Weiss behaviour in the paramagnetic state signifies the strong Griffiths singularity in the material. The magnetic hysteresis loops unveil the coexistence of two-phase magnetic systems in Co₃Sn₂S₂. The Arrott plots (M² vs. H/M) results prove the second phase order transition in Co₃Sn₂S₂. The spin fluctuation theory study confirms itinerant ferromagnetism in Co₃Sn₂S₂.