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Spin-lattice relaxation of 25Al and 28P in Pt

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Abstract

The spin-lattice relaxation times T 1 for short-lived β emitters 25Al(I = 5/2, T 1/2 = 7.2 s) and 28P(I = 3, T 1/2 = 270 ms) in Pt were measured by means of the β-NMR technique. As a result, T 1[25Al in Pt] = (1.1 \(^{+\ 0.7}_{-\ 0.3})\) s and T 1[28P in Pt] >0.5 s were obtained at temperatures of 17 and 20 K, respectively. The Knight shifts were estimated from the Korringa relation, which were evaluated by comparing to the first principle calculations.

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Authors and Affiliations

  1. Department of Physics, Osaka University, 1-1, Machikaneyama, Toyonaka, Osaka, 560-0043, Japan

    M. Mihara, K. Matsuta, D. Nishimura, R. Matsumiya, M. Ogura, H. Akai, J. Komurasaki, M. Fukuda & D. Ishikawa

  2. RIKEN, Wako, Saitama, 351-0198, Japan

    T. Nagatomo

  3. Kochi University of Technology, Kami, Kochi, 782-8502, Japan

    S. Momota & Y. Nojiri

  4. Department of Physics, Niigata University, Niigata, 950-2181, Japan

    T. Ohtsubo, H. Hirano, S. Takahashi, R. Watanabe & T. Kubo

  5. Radioisotope Center, Niigata University, Niigata, 951-8510, Japan

    T. Izumikawa

  6. China Institute of Atomic Energy, Beijing, 102413, People’s Republic of China

    D. M. Zhou, Y. N. Zheng & S. Y. Zhu

  7. National Institute of Radiological Sciences, Chiba, 263-8555, Japan

    A. Kitagawa, M. Kanazawa, S. Sato & M. Torikoshi

  8. Tokyo University of Science, Noda, Chiba, 278-8510, Japan

    T. Sumikama

  9. Fukui University of Technology, Fukui, 910-8505, Japan

    T. Minamisono

  10. Lawrence Berkeley Laboratory, Berkeley, CA, 94720, USA

    J. R. Alonso, G. F. Krebs & T. J. M. Symons

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  1. M. Mihara
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  2. K. Matsuta
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  3. D. Nishimura
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  5. R. Matsumiya
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  6. S. Momota
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  7. T. Ohtsubo
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  8. T. Izumikawa
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  9. D. M. Zhou
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  11. M. Ogura
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  12. H. Akai
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  13. J. Komurasaki
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  14. M. Fukuda
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  15. D. Ishikawa
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  16. Y. Nojiri
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  17. H. Hirano
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  18. S. Takahashi
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  19. R. Watanabe
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  20. T. Kubo
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  21. S. Y. Zhu
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  22. A. Kitagawa
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  23. M. Kanazawa
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  24. S. Sato
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  25. M. Torikoshi
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  26. T. Sumikama
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  27. T. Minamisono
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  28. J. R. Alonso
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  29. G. F. Krebs
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  30. T. J. M. Symons
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Corresponding author

Correspondence to M. Mihara.

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Mihara, M., Matsuta, K., Nishimura, D. et al. Spin-lattice relaxation of 25Al and 28P in Pt. Hyperfine Interact 178, 83–86 (2007). https://doi.org/10.1007/s10751-008-9662-4

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  • DOI: https://doi.org/10.1007/s10751-008-9662-4

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