Abstract
NMR measurements on 51 V and 93 Nb impurities in Pt and Pd host metals were carried out using both CW and pulsed NMR techniques. Line width, Knight shift and nuclear magnetic relaxation time were measured at temperatures between 4.2 and 1.2 K. Marked result is strong reduction of nuclear spin-lattice relaxation rate of impurity nuclei compared with that in bulk V or Nb metals. From the observed results on the Knight shift and the spin-lattice relaxation rate, it is concluded that the local density of states at the impurity sites are severely reduced compared with that in bulk. Comparison with the theoretical calculations is briefly given.
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