Relativistic correction of the contact interaction in the nuclear spin-lattice relaxations of HCP transition metals

Abstract

The contribution of the contact interaction in the nuclear spin-lattice relaxation rates of HCP transition metals (Sc, Ti, Y, Zr and Tc) is recalculated using a relativistic hyperfine coupling constant expression in place of the conventional non-relativistic Fermi formula. It is shown that the relativistic effects do not cause such a large change in the relaxation rates as was stated in the previous paper (1982). The revised total theoretical rates are shown to be more favourable than the previous ones, except for Tc, in comparison with the experiments.