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Nuclear spin-lattice relaxation times in Nb, Pb, and Sn were measured at 2 to 77 deg K at 14 Mc by the pulse technique. All samples were powders of 1 to 10 mu in size; the purities of the Pb and the Sn were 99.9%, and that of the Nb was 99.5%. Knight shifts, calculations, and data are presented in tabular form.
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Junkichi Itoh (1962) studied this question.
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