Detection of two magnetocaloric consecutive peaks in HoCo2

To simulate the magnetocaloric effect (MCE) of a HoCo2 sample, a phenomenological model (PM) is used. MCE parameters are inferred from PM as the result of modelling for magnetization vs. temperature in 0.5 T. The HoCo2 exhibits two consecutive conventional MCEs with cooling via adiabatic demagnetization. HoCo2 exhibits double peak MCE behaviour. It is recommended that HoCo2 use it as a useful MR material over a temperature range spanning a significant temperature range of 0-140 K. Consequently, HoCo2 is appealing for MR because its MCE spans a wide temperature range, particularly liquefaction of nitrogen and hydrogen.