Advertisement

Local Pairing and Antiferromagnetism in High-Tc Superconductors

  • H. R. Lee
  • Thomas F. George

Abstract

The CuO2 planes in high-temperature superconductors are studied by a two-dimensional Hubbard Hamiltonian with a new proposed vacuum (d9p6). The superexchange energy between Cu sites and the hopping parameters of the carriers estimated in this new vacuum are in good agreement with experimental observations as well as numerical calculations with a finite cluster. Single carriers (electrons for n-type or holes for p-type) are localized due to the rigidity of the antiferromagnetic background. Local pairing in the CuO2 plane enables the paired states to move around without disturbing the antiferromagnetic background. The binding energy is estimated from the pair hopping energy, which causes the paired state to be lower in energy than the single carrier state.

Keywords

Coulomb Repulsion Paired State Local Pairing Single Carrier Antibonding State 
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. Müller, Z. Phys. B 64, 189 (1986).ADSCrossRefGoogle Scholar
  2. 2.
    P. W. Anderson, Science 235, 1196 (1987); Z. Z.u and P. W. Anderson, Phys. Rev. B 37, 627 (1988); J. E. Hirsch, E. Loh, Jr., D. J. Salapino and S. Tang, Phys. Rev. B 39, 243 (1989).Google Scholar
  3. 3.
    G. Shirane, Y. Endoh, R. J. Birgeneau, M. A. Kastner, Y. Hidaka, M. Oda, M. Suzuki and T. Murakami, Phys. Rev. Lett. 59, 1613 (1987); J. M. Tranquada, D. E. Cox, W. Kunnmann, H. Moudden, G. Shirane, M. Suenaga, P. Zolliker, D. Vaknin, S. K. Sinha, M. S. Alvarez, A. J. Jacobson and D. C. Johnston, Phys. Rev. Lett. 60, 156 (1988); K. B. Lyons, P. A. Fleury, L. F. Schneemeyer and J. V. Waszczak, Phys. Rev. Lett. 60, 732 (1988).Google Scholar
  4. 4.
    Y. Tokura, H. Takagi and S. Uchida, Nature 337, 345 (1989).ADSCrossRefGoogle Scholar
  5. 5.
    C. N. R. Rao, A. K. Ganguli, R. Vihayaraghavan, N. Y. Vasanthachara, A. K. Sood and N. Chandrabhas, High-T Update 3(9), 7 (1989).Google Scholar
  6. 6.
    J. M. Tranquada, S. M. Heald, A. R. Moodenbaugh, G. Liang and M. Croft, Nature 327, 720 (1989).ADSCrossRefGoogle Scholar
  7. 7.
    J. M. Tranquada, S. M. Heald and A. R. Moodenbaugh, Phys. Rev. B 36, 5263 (1987).ADSCrossRefGoogle Scholar
  8. 8.
    E. B. Stechel and D. R. Jennison, Phys. Rev. B 38, 4632 (1988); V. J. Emery and G. Reiter, Phys. Rev. B 38, 45-47 (1988).Google Scholar
  9. 9.
    R. L. Greene, H. Maletta, T. S. Plaskett, J. G. Bednorz and K. A. Müller, Solid State Commun. 63, 379 (1987); K. Yamada, E. Kudo, Y. Endoh, Y. Hidaka, M. Oda, M. Suzuki and T. Murakami, Solid State Commun. 64, 753 (1987).Google Scholar
  10. 10.
    A. K. McMahan, R. M. Martin and S. Satpathy, Phys. Rev. B 38, 6650 (1988); D. E. Ramaker, N. H. Turner, J. S. Murday, L. E. Toth, M. Osofsky and F. L. Hutson, Phys. Rev. B 36, 5672 (1987).Google Scholar
  11. 11.
    H. R. Lee and T. F. George, unpublished.Google Scholar
  12. 12.
    Y. J. Uemura, V. J. Emery, A. R. Moodenbaugh, M. Suenaga, D. C. Johnston, A. J. Jacobson, J. T. Lewandowski, J. H. Brewer, R. F. Kiefl, S. R. Kreitzman, G. M. Luke, T. Riseman, C. E. Stronach, W. J. Kossler, J. R. Kempton, X. Y. Yu, D. Opie and H. E. Schone, Phys. Rev. B 38, 909 (1988).ADSCrossRefGoogle Scholar
  13. 13.
    H. R. Lee, K. H. Yeon and T. F. George, manuscript in preparation.Google Scholar
  14. 14.
    J. H. Brewer and 34 co-authors, Phys. Rev. Lett. 60, 1073 (1988); D. C. Johnston, J. P. Stokes, D. P. Goshorn and J. T. Lewandowski, Phys. Rev. B 36, 4007 (1987); R. J. Cava, B. Batlogg, C. H. Chen, E. A. Reitman, S. M. Zahurak and D. Werder, Nature 329, 423 (1987).Google Scholar
  15. 15.
    J. E. Hirsch, Phys. Rev. Lett. 59, 228 (1987); S. A. Trugman, Phys. Rev. B 37, 1597 (1988).Google Scholar
  16. 16.
    J. R. Kirtley, R. T. Collins, Z. Schlessinger, W. J. Gallagher, R. L. Sandstorm, T. R. Dinger and D. A. Chance, Phys. Rev. B 35, 8846 (1987).ADSCrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media New York 1990

Authors and Affiliations

  • H. R. Lee
    • 1
  • Thomas F. George
    • 1
  1. 1.Department of Physics & Astronomy and ChemistryState University of New York at BuffaloBuffaloUSA

Personalised recommendations