Magnetocaloric properties of the binary Ising model with arbitrary spin

TL;DR

This study investigates the magnetocaloric effect in binary Ising alloys with arbitrary spins using effective field theory, highlighting how concentration tuning can optimize refrigerant capacity.

Contribution

It introduces a method to analyze magnetocaloric properties of arbitrary spin binary alloys and demonstrates how concentration affects performance.

Findings

Refrigerant capacity varies with concentration.

Intermediate concentrations yield higher refrigerant capacity.

Effective field theory effectively models the magnetocaloric effect.

Abstract

The magnetocaloric properties of the Ising binary alloys composed of arbitrary spin values, have been determined by using effective field theory. For determining the efficiency of the magnetocaloric effect in binary alloy, the quantities of interest such as isothermal magnetic entropy change and refrigerant capacity have been calculated for various values of spin and concentration. It is shown that, by changing the concentration we can tune the magnetocaloric performance. Also, it has been shown that greater refrigerant capacity can be obtained for intermediate concentration values, in comparison with the limiting concentration values.