Abstract
Brute-force nuclear magnetic resonance on oriented nuclei (BF-NMRON) was used to investigate the nuclear spin-relaxation times, T 1 , of 90 Nb in Nb and Cu, 96 Tc in Nb, 101 m Rh in Cu, and 110 m Ag in Ag with an external field of 11.922 T at about 10 mK. The observed relaxation times with known nuclear g-factors were used to estimate the converted relaxation rates, ( T 1 T g n 2 ) -1 , which were compared with those obtained from NMR and other methods. From the comparison, it was found that ( T 1 T g n 2 ) -1 of 90 Nb in Nb and 110 m Ag in Ag coincided with those of the bulk systems. ( T 1 T g n 2 ) -1 of 90 Nb in Cu was about four times larger than that of Nb bulk system. Both 96 Tc in Nb and 101 m Rh in Cu produced ( T 1 T g n 2 ) -1 values consistent with previous studies.
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