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The magnetic and magnetocaloric (MCE) properties were studied in a stuffedhoneycomb antiferromagnet GdInO3 polycrystalline. No long-range magneticordering was observed with only a sharp upturn in the temperature dependentmagnetization curves at TN ~ 2.1 K. The large value of frustration index value~ 5.0 suggests short-range antiferromagnetic interactions existing between theGd3+ moments in this frustrated magnetic system. Negligible thermal andmagnetic hysteresis suggest a second-order feature of phase transition and areversible magnetocaloric effect (MCE) in GdInO3 compound. In the magneticfield changes of 0-50 kOe and 0-70 kOe, the maximum magnetic entropy changevalues are 9.31 J/kg K and 17.53 J/kg K near the liquid helium temperature,with the corresponding RCP values of 106.61 and 196.38 J/kg, respectively. Therelative lower MCE performance of GdInO3 polycrystalline than the otherGd-based magnetocaloric effect is understood by the high magnetic frustrationin this system. Our investigation results reveal GdInO3 polycrystalline has alarge reversible MCE, which not only provides another possibility of exploitingmagnetocaloric refrigerants in the frustrated magnetic systems near thecryogenic temperature region, but also serves to excavate more exoticproperties in the frustrated stuffed honeycomb magnetic systems.

Magnetic and magnetocaloric effect in the stuffed honeycomb antiferromagnet GdInO3 polycrystalline