Nuclear-Resonance Investigation of a Scandium-Hydrogen Solid Solution

Abstract

Nuclear-magnetic-resonance measurements of spin-lattice relaxation time, Knight shift, and linewidths have been made for ${}_{}{}^1{}_{}{}^{}\mathrm{H}$ and ${}_{}{}^{45}{}_{}{}^{}\mathrm{Sc}$ contained in Sc${\mathrm{H}}_{0.37}$. Rigid-lattice proton linewidths indicate that the hydrogen is randomly located among two interstitial sites in hcp scandium. Both the spin-lattice relaxation rate and Knight shift for ${}_{}{}^{45}{}_{}{}^{}\mathrm{Sc}$ decrease relative to the values for scandium metal in such a manner that the Korringa product remains constant. Diffusion parameters are determined from the proton data.