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Nmr Study in Sodium-Hydrogen-C60 Superconductor

  • H. Ogata (a1), S. Miyajima (a1), K. Imaeda (a1) and H. Inokuchi (a1)

Abstract

23Na and 1H NMR studies have been carried out for a NaxHyC60 superconductor The peak position of the 23Na NMR spectrum exhibits discontinuous upfield shift of 30 ppm at about 250 K, indicates a first order phase transition From the line shape of the 23Na spectrum obtained at 7 K, the quadrupole coupling constant tensor is evaluated to be |e2Qq/h|=3.7 MHz with the asymmetry parameter η = 0.95. The 1H NMR spectrum suggests an anionic hydrogen state with weakly delocalized nature.

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1. Enoki, T., Miyajima, S., Sano, M., Inokuchi, H., J.Mater.Res. 5, 435(1990).
2. Miyajima, S., Kabasawa, M., Chiba, T., Enoki, T., Maruyama, Y., Inokuchi, H., Phys.Rev.Lett. 64, 319(1990).
3. Imaeda, K., Kroeber, J., Inokuchi, H., Yonehara, Y., Ichimura, K., Solid State Commun. 99,479 (1996).
4. Nakano, C., Imaeda, K., Kroeber, J., Inokuchi, H., Chem. Lett.343(1997).

Nmr Study in Sodium-Hydrogen-C60 Superconductor

  • H. Ogata (a1), S. Miyajima (a1), K. Imaeda (a1) and H. Inokuchi (a1)

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