Magnetic Properties of $UFe_{2+x}$ Prepared by Splat Cooling

A series od $UFe_{2+x}$ materials was prepared using splat cooling. The Laves phase structure can accommodate up to 0.3 Fe excess, while $T_C$ is enhanced from 172 K to approximately 240 K. Higher Fe concentration leads to the segregation of α-Fe. $\text{}^{57}Fe$ Mössbauer spectroscopy indicates higher Fe magnetic hyperfine fields on Fe nuclei occupying the U sublattice than for the regular Fe sites.