Advertisement

NMR Study of High-Tc Superconductors

  • Y. Kitaoka
  • K. Ishida
  • F. Fujiwara
  • T. Kondo
  • K. Asayama
  • M. Horvatic
  • Y. Berthier
  • P. Butaud
  • P. Segransan
  • C. Berthier
  • H. Katayama-Yoshida
  • Y. Okabe
  • T. Takahashi
Part of the Springer Series in Solid-State Sciences book series (SSSOL, volume 89)

Abstract

Cu NQR and oxygen NMR studies of high Tc materials are reported. The behavior of the Cu nuclear spin-lattice relaxation in CuO2 planer site is demonstrated to be unconventional above and below Tc for (La0.925Sr0.075)2CuO4 (Tc=38 K), YBa2Cu3O7 (Tc=92K) and Bi-Pb-Sr-Ca-Cu-O (Tc=109 K) compared with BCS superconductor. From the hole content dependence of T1 in (La1−xSrx)2CuO4, the normal state of high Tc materials is found to be dominated by the antiferromagnetic spin fluctuations. The Knight shift of 17O has been measured for the 0O(1) site in CuO2 plane and O(2) site in the Lao layer in (C.a0.925Sr0.075)2CuO4. In normal state, the shift for the O(1) site decreases with decreasing temperature in proportion to the bulk susceptibility, while the shift for O(2) site is temperature independent. Below Tc, both shifts decrease with a moderate rate compared to the shift for O(2,3) site in YBa2Cu3O7 which shows a faster reduction than the BCS prediction. The coupling between the localized spins at Cu(2) sites and the mobile oxygen p-holes is discussed in the light of these results.

Keywords

Spin Correlation Spin Fluctuation Knight Shift Oxygen Site Nuclear Spin Lattice Relaxation Rate 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. (1).
    J.G. Bednorz and K.A. Muller: Z. Phys. B64 (1986) 189.CrossRefGoogle Scholar
  2. (2).
    W.W. Warren, Jr., R.E. Walstedt, G.F. Brennert, G.P. Espinosa and J. P. Remeika, Phys. Rev. Lett. 59 (1987) 1860.CrossRefADSGoogle Scholar
  3. (3).
    M. Mati, D. Brinkmann, L. Pauli, J. Roos, H. Zimmermann and J. Hulliger, Phys. Lett. Al24 (1987) 112.ADSGoogle Scholar
  4. (4).
    Y. Kitaoka, S. Hiramatsu T. Kondo and K. Asayama, J. Phys. Soc. Jpn. 58 (1988) 30.CrossRefADSGoogle Scholar
  5. Y. Kitaoka, S. Hiramatsu, Y. Kohori, K. Ishida, T. Kondo, H. Shibai, K. Asayama, H. Takagi, S. Uchida, H. Iwabuchi, and S. Tanaka, Physica C153–155 (1988) 83.CrossRefGoogle Scholar
  6. (5).
    T. Imai, T. Shimizu, T. Tsuda, H. Yasuoka, T. Takabatake, Y. Nakazawa and M. Ishikawa, J. Phys. Soc. Jpn. 57 (1988) 1771.CrossRefADSGoogle Scholar
  7. (6).
    C. H. Penning ton, D.J. Durand, C. P. S1ichter, J. P. Rice, E. D. Bukowsk and D. M. Ginsberg, Phys. Rev. B39 (1989) 274; ibid, (1989) 2902.Google Scholar
  8. (7).
    M. Horvatic, P. Segransan, C. Berthier, Y. Berthier, P. Butaud, J. Y. Henry, M. Couach, J. P. Chaminade, Phys. Rev. B39 (April 1989).Google Scholar
  9. (8).
    K. Ishida, Y. Kitaoka and K. Asayama, J. Phys. Soc. Jpn. 58 (1989) 36.CrossRefADSGoogle Scholar
  10. (9).
    K. Fujiwara, Y. Kitaoka, K. Asayama, H. Sasakura, S. Minamigawa, K. Nakahigashi, S. Nakanishi, M. Kogachi, Nobuo Fukuoka and A. Yanase, J. Phys. S.c. Jpn. 58 (1989) 380.CrossRefADSGoogle Scholar
  11. (10).
    K. Ishida, T. Kondo, Y. Kitaoka and K. Asayama, J. Phys. Soc. Jpn. to be published.Google Scholar
  12. (11).
    K. Asayama, Y. Kitaoka and Y. Kohori, J. Magn. Magn. and Mat. 76 & 77 (1988) 449.CrossRefADSGoogle Scholar
  13. (12).
    J.B. Torrance, Y. Tokura, A. I. Nazzal, A. Bezinge, T.C. Huang and S.S.P. Parkin. Phys. Rev. Lett. 61 (1988) 1127.CrossRefADSGoogle Scholar
  14. (13).
    K. Kumagai and Y. Nakamura, Physica C157 (1989) 307.ADSGoogle Scholar
  15. (14).
    H. Yasuoka, et al., in this Proceeding.Google Scholar
  16. (15).
    K. Ishida, Y. Kitaoka, K. Asayama, H. Katayama-Yoshida, Y. Okabe and T. Takahashi, J. Phys. Soc. Jpn. 57 (1988) 2897.CrossRefADSGoogle Scholar
  17. (16).
    C. Coretsopoulos, H. C. Lee, E. Ramli, L. Reven, T. B. Rauchuss and E. Oldfield,: Phys. Rev. B39 (1989) 781.CrossRefADSGoogle Scholar
  18. (17).
    P. Wzietek, D. Kongeter, P. Auban, D. Jerome, J.P. Coutures, B. Dubuis, Ph. Odier, Europhys. Lett. 8 (1989) 363.CrossRefADSGoogle Scholar
  19. (18).
    M. Takigawa, P.C. Hammel, R.H. Heffner, Z. Fisk, K.C. Ott and J.D. Thompson, preprint.Google Scholar
  20. (19).
    M. Horvatic, Y. Berthier, P. Butaud, Y. Kitaoka, P. Segransan, C. Berthier, H. Katayama—Yoshida, Y. Okabe, and T. Taskahashi, Physica C, to be publishedGoogle Scholar
  21. (20).
    M. Takigawa, private communication.Google Scholar
  22. (21).
    Y. Kitaoka, et al. in preparation.Google Scholar
  23. (22).
    P. Butaud, et al.: in preparation.Google Scholar
  24. (23).
    J. S. M. Harvey, Proc. Roy. Soc. A 285 (1965) 581.CrossRefADSGoogle Scholar

Copyright information

© Springer-Verlag Berlin, Heidelberg 1989

Authors and Affiliations

  • Y. Kitaoka
    • 1
  • K. Ishida
    • 1
  • F. Fujiwara
    • 1
  • T. Kondo
    • 1
  • K. Asayama
    • 1
  • M. Horvatic
    • 2
  • Y. Berthier
    • 2
  • P. Butaud
    • 2
  • P. Segransan
    • 2
  • C. Berthier
    • 2
  • H. Katayama-Yoshida
    • 3
  • Y. Okabe
    • 3
  • T. Takahashi
    • 3
  1. 1.Department of Material Physics, Faculty of Engineering ScienceOsaka UniversityToyonaka, Osaka 560Japan
  2. 2.Laboratoire de Spectrometrie PhysiqueUniversité Joseph-Fourier Grenoble ISt. Martin d’Hères, CedexFrance
  3. 3.Department of PhysicsTohoku UniversitySendai 980Japan

Personalised recommendations