Knight shifts for short-lived β emitters in Pt.

Autor: Matsuta, K., Minamisono, T., Tanigaki, M., Onishi, T., Fukuda, M., Mihara, M., Akai, H., Sasaki, M., Yamaguchi, T., Miyake, T., Sato, K., Minamisono, K., Ha, C., Tanaka, K., Kidera, K., Morishita, A., Kaminaka, S., Tsubota, T., Sumikama, T., Kitagawa, A.
Zdroj: Hyperfine Interactions; Sep1999, Vol. 120/121 Issue 1-8, p719-723, 5p
Abstrakt: The Knight shifts K for short-lived β emitters 12N and 27Si implanted in Pt have been measured by means of β-NMR technique. The results were K(12N in Pt)= +(5.8 ± 2.1)× 10-4 and K(27Si in Pt)= +(1.4 ± 0.8)× 10-3. The spin–lattice relaxation time T1 was measured for 12N in Pt. The result was T1(12N in Pt, T=300 K)= 66 ± 8 ms, thus, T1T= 20 ± 2 Ks. The present Knight shifts are in good agreement with the KKR band structure calculation with local lattice relaxation determined theoretically. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index
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