First-order transition from antiferromagnetism to ferromagnetism in Ce(Fe0.96Al0.04)2

Abstract

Taking the pseudobinary C15 Laves phase compound $\mathrm{Ce}({\mathrm{Fe}}_{0.96}{\mathrm{Al}}_{0.04}{)}_2$ as a paradigm for studying a ferromagnetic to antiferromagnetic phase transition, we present interesting thermomagnetic history effects in magnetotransport as well as magnetization measurements across this phase transition. A comparison is made with history effects observed across the ferromagnetic to antiferromagnetic transition in $R_{0.5}{\mathrm{Sr}}_{0.5}{\mathrm{MnO}}_3$ crystals.