Magnetic, electronic, and structural investigation of the strongly correlated Y${}_{1-x}$Sm${}_x$Co${}_5$ system

Abstract

SmCo${}_5$ and YCo${}_5$ are isostructural compounds both showing large magnetocrystalline anisotropy, where the former originates mainly from the crystal-electric field and magnetic interactions. We investigate the contribution of both interactions by partially substituting Y by Sm in as-cast polycrystalline Y${}_{1-x}$Sm${}_x$Co${}_5$ (with $x$=0, 0.1, 0.2, 0.3, and 0.4) and measuring their structural, magnetic, and electrical properties through X-ray diffraction, magnetization, and electrical transport measurements. Our results suggest an interplay between microstructure strain in as-cast samples and the electronic and magnetic interactions.