Magnetic properties and magnetocaloric effect in the multiple rare-earth-containing MRE2Cu2In compounds

In this study, two Mo 2 FeB 2-type multiple rare-earth-containing MRE 2 Cu 2 In ( MRE = Dy 1/3 Ho 1/3 Er 1/3 and Ho 1/ 3 Er 1/3 Tm 1/3 ; space group P 4/ mbm , No. 127) compounds are prepared via arc-melting method and systematically determined regarding their structural and magnetic properties, magnetic phase transition (MPT), and magnetocaloric (MC) performances. They undergo typical second-order MPT at low temperatures. The MC effect and MC performances of the present MRE 2 Cu 2 In compounds at low temperatures are assessed using magnetic entropy changes, refrigerant capacity, and temperature-averaged entropy changes. The values of these parameters are comparable to most updated candidate materials for low-temperature magnetic cooling, making the present MRE 2 Cu 2 In compounds considerable for practical applications.