Exchange Enhanced Pauli Paramagnetism of ScCo₂

Abstract

The temperature dependence of magnetic susceptibility, χ, of a cubic Laves phase compound ScCo₂ was measured in the temperature range 4.2–1018 K and found to have a broad maximum at about 600 K. The temperature dependent Knight shift, K, of Sc was obtained from NMR experiment below room temperature. The K vs χ plot gives a straight line resulting in −41 kOe/μ_B as a transferred hyperfine field from Co. It was concluded that ScCo₂ is an exchange enhanced Pauli paramagnet of the same kind of YCo₂ and LuCo₂.