NMR in High Tc Oxide Superconductors

  • Y. Kitaoka
  • K. Ishida
  • K. Fujiwara
  • Y. Kohori
  • K. Asayama
  • H. Katayama-Yoshida
  • Y. Okabe
  • T. Takahashi
Conference paper
Part of the Springer Series in Materials Science book series (SSMATERIALS, volume 11)

Abstract

Since the discovery of the high Tc oxide superconductor1), many experimental and theoretical efforts have been made to elucidate the mechanism for the occurrence of the superconductivity. In these systems the important problem is to investigate which atomic sites are responsible for the superconductivity. NMR measurement which provides information on the electronic state at each atomic site is a suitable tool for this study. Measurements of nuclear spin-lattice relaxation time T1 have been performed on Cu sites at CuO2 plane and CuO chain2)3)4)5) and on Y site6). Recently we have prepared the 17O substituted YBa2Cu3O7 and measured T1 of 17O.7)

Keywords

Vortex Anisotropy Coherence 

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

Reference

  1. (1).
    J.G. Bednorz and K.A. Müller: Z. Phys. B64 (1986).Google Scholar
  2. (2).
    W.W. Warren et al.: Phys. Rev. Lett. 59 (1987) 1860.ADSCrossRefGoogle Scholar
  3. (3).
    M. Mali et al.: Phys. Lett. A124 (1987) 112.ADSGoogle Scholar
  4. (4).
    Y. Kitaoka et al.: J. Phys. Soc, Jpn. 57 (1988) 30.ADSCrossRefGoogle Scholar
  5. (4a).
    Y. Kitaoka et al.: Physica C153–155 (1988) 83.Google Scholar
  6. (5).
    Imai et al.: J. Phys. Soc. Jpn. 57 (1988) 1771.ADSCrossRefGoogle Scholar
  7. (6).
    Markert et al.: Solid State Commun. 63 (1987) 847.ADSCrossRefGoogle Scholar
  8. (7).
    Y. Kitaoka et al.: submitted to Nature. K. Ishlda et al.: J. Phys. Soc. Jpn. 57 (1988) 2897.ADSCrossRefGoogle Scholar
  9. (8).
    K. Ishida et al.: submitted to J. Phys. Soc. Jpn.Google Scholar
  10. (9).
    K. Fujiwara et al.: in preparation K. Fujiwara et al.: J. Phys. Soc. Jpn. 57 (1988) 2893.ADSCrossRefGoogle Scholar
  11. (10).
    Y. Kohori et al.: J. Phys. Soc. Jpn. 57 (1988) 2905.ADSCrossRefGoogle Scholar
  12. (11).
    H. Katayama-Yoshida et al.: Jap. J. Appl. Phys. Lett. 26 (1987) 2085.ADSCrossRefGoogle Scholar
  13. (11a).
    C. Thomsen et al.: Solid State Commun. 65 (1988) 1139.ADSCrossRefGoogle Scholar
  14. (12).
    T. Takahashi et al.: Phys. Rev. B36 (1987) 5686.ADSGoogle Scholar
  15. (13).
    T. Koyama and T. Tachiki: submitted to Phys. Rev. B.Google Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 1989

Authors and Affiliations

  • Y. Kitaoka
    • 1
  • K. Ishida
    • 1
  • K. Fujiwara
    • 1
  • Y. Kohori
    • 1
  • K. Asayama
    • 1
  • H. Katayama-Yoshida
    • 2
  • Y. Okabe
    • 2
  • T. Takahashi
    • 2
  1. 1.Department of Material Physics, Faculty of Engineering ScienceOsaka UniversityToyonaka, Osaka 560Japan
  2. 2.Department of PhysicsTohoku UniversitySendai 980Japan

Personalised recommendations