Tuning electronic and magnetic properties of FeRh alloy by chemical and physical method

Abstract

The electronic, magnetic, and thermodynamic properties of ordered and chemically disordered FeRh alloy is studied using ab-initio methods. The equiatomic Fe$_{50}$Rh$_{50}$ composition is reported for both ordered and disordered phases. Chemically disordered Fe$_x$Rh$_{100-x}$ is reported and the effect of disorder on electronic and magnetic properties is discussed. Further, We have reported the effects of stress and strain in both the order and disorder phases. The result is only for the cubic phase and no distortion has been taken into consideration. This study is motivated by the recent resurgence in FeRh study motivated by the fact that the barocaloric properties can be possible to sustain over the cycle. Hence, we have discussed the properties of Fe$_x$ Rh${100-x}$ with chemical disorder and pressure together, to gain an insight into the compound effect and the interplay between them