Magnetic and magnetocaloric effect in a stuffed honeycomb polycrystalline antiferromagnet GdInO₃

The magnetic and magnetocaloric properties were studied in a stuffed honeycomb polycrystalline antiferromagnet GdInO₃. The onset temperature of antiferromagnetic ordering was observed at ～ 2.1 K. Negligible thermal and magnetic hystereses suggest a reversible magnetocaloric effect (MCE) in the GdInO₃ compound. In the magnetic field changes of 0 kOe-50 kOe and 0 kOe-70 kOe, the maximum magnetic entropy change values are 9.65 J/kg· K and 18.37 J/kg· K, respectively, near the liquid helium temperature, with the corresponding relative cooling power values of 115.01 J/kg and 211.31 J/kg. The MCE investigation of the polycrystalline GdInO₃ serves to illuminate more exotic properties in this frustrated stuffed honeycomb magnetic system.