Magnetic and Nuclear-Resonance Properties of Single-Crystal Scandium

Abstract

Magnetic-susceptibility, magnetic-anisotropy, and nuclear-magnetic-resonance measurements were performed on single-crystal scandium samples from 4.2 to 300°K. The susceptibility of single-crystal scandium is greater along the $a$ axis than along the $c$ axis. The nuclear relaxation rate ${\left(T_{1}T\right)}^{-1\mathrm{}}$ has a ${sin}^2\theta$ dependence on the angle between the static magnetic field and the crystallographic $c$ axis. The orbital hyperfine interaction is the major contribution to the relaxation rate. From the experimental results, values are estimated for the electronic density of states, the average fractional $s$ character, the average fractional admixture coefficients for $d$ electrons at the Fermi surface, and the orbital paramagnetism.