Effect of configuration entropy on magnetocaloric effect of rare earth high-entropy alloy

In this work, the relationship between configuration entropy and isothermal magnetic entropy change (ΔSM) of rare earth high-entropy alloys (HEAs) was studied. The results show that the matrix of rare earth HEAs GdTbHoEr exhibits the largest refrigerant capacity up to now (about 924.48 J kg−1 at a 5 T magnetic field). With the addition of non-magnetic elements La and Y, the configuration entropy increases, but the values of ΔSM and the...