Magnetic anomaly and magnetocaloric effect in Dy2InDy2In

The magnetic properties of the rare-earth based intermetallic compound Dy2InDy2In has been investigated. The sample undergoes long range ferromagnetic ordering below TC=125K and a spin reorientation type ordering below Tt=50K. A reasonably large change in the magnetic entropy (ΔSM=-7.1Jkg-1K-1 for 0–40 kOe change of field) is observed around TCTC of the sample. The entropy change takes place over a sufficiently large range of temperature and the corresponding refrigerant capacity is found to be as high as 473Jkg-1. The observed magneto-caloric effect can be ascribed to the existence of magnetic fluctuations over a wide regime across the second order phase transition.