NMR studies of the new superconductors AOs2O6 (A=K, Rb)

K. Arai, J. Kikuchi, K. Kodama, M. Takigawa, S. Yonezawa, Y. Muraoka, Z. Hiroi

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14 Citations (Scopus)


We report results of nuclear magnetic resonance (NMR) experiments on 39K and 87Rb nuclei in the new superconductors AOs2O6 (A=K or Rb). These compounds crystallize in the β-pyrochlore structure. In the superconducting phase, we found a small peak in 1/(T1T) for 87Rb slightly below the superconducting transition temperature (Tc) but no peak for 39K. In the normal state of KOs2O6, we observed a clear pseudogap behavior similar to what has been observed in high Tc cuprates.

Original languageEnglish
Pages (from-to)488-490
Number of pages3
JournalPhysica B: Condensed Matter
Issue numberSPEC. ISS.
Publication statusPublished - Apr 30 2005
Externally publishedYes


  • K-NMR
  • Rb-NMR
  • The new superconductors AOO(A=K, Rb, Cs)

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

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    Arai, K., Kikuchi, J., Kodama, K., Takigawa, M., Yonezawa, S., Muraoka, Y., & Hiroi, Z. (2005). NMR studies of the new superconductors AOs2O6 (A=K, Rb). Physica B: Condensed Matter, 359-361(SPEC. ISS.), 488-490. https://doi.org/10.1016/j.physb.2005.01.123