Advertisement

Journal of Superconductivity

, Volume 9, Issue 4, pp 431–435 | Cite as

Pair breaking, “intrinsic”Tc, and the upper limit ofTc in the cuprates

  • Vladimir Z. Kresin
  • Stuart A. Wolf
  • Yu. N. Ovchinnikov
Article

Abstract

The presence of magnetic impurities leads to a drastic decrease inTc in the overdoped region, gaplessness, and the usual temperature dependence ofHc2. The magnetic moments are localized on the apical oxygen site, and this allows us to explain the increase inTc with the increase in the number of Cu-O planes in the unit cell. Applied pressure can raiseTc above the usual value at optimum doping, toward the “intrinsic”Tc. The cuprates as a class of compounds have an upper limit ofTc in the rangeTc,upp=160–170 K.

Key words

Pair breaking magnetic impurities upper limit ofTc 

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. 1. a.
    C. Niedermayeret al., Phys. Rev. Lett. 71, 1764 (1993)Google Scholar
  2. 1. b.
    J. Tallon and J. Loram,J. Supercond. 7, 15 (1994); J. Tallonet al. Phys. Rev. Lett. 74, 1008 (1995).Google Scholar
  3. 2.
    A. P. Mackenzieet al., Phys. Rev. Lett. 71, 1938 (1993); A. Carringtonet al. Phys. Rev. B 49, 13243 (1994).Google Scholar
  4. 3.
    M. Osofskyet al., Phys. Rev. Lett. 71, 2315 (1993).Google Scholar
  5. 4.
    E. Helfand and N. R. Werthamer,Phys. Rev. Lett. 13, 868 (1964);Phys. Rev. 147, 288 (1966).Google Scholar
  6. 5. a.
    J. Schilling and S. Klotz, inPhysical Properties of High-Temperature Superconductors, Vol. 3, D. Ginsberg, ed. (World Scientific Singapore, 1982)Google Scholar
  7. 5 b.
    P. Chuet al., inFrontiers of High-Pressure Research, H. Hochheimer and R. Etters, eds. (Plenum, New York, 1991).Google Scholar
  8. 6.
    D. Berkelyet al. Phys. Rev. B 47, 5524 (1993).Google Scholar
  9. 7.
    V. Kresin and S. Wolf,Phys. Rev. B 46, 6458 (1992);ibid.,51, 1229 (1995).Google Scholar
  10. 8. a.
    A. Abrikosov and L. Gor'kov,Sov. Phys.-JETP 12, 1243 (1961)Google Scholar
  11. 8. b.
    P. de Gennes,Phys. Condens. Matter 3, 79 (1964); P. de Gennes,Superconductivity in Metals and Alloys (Benjamin, New York, 1966)Google Scholar
  12. 8. c.
    S. Skalski, O. Betbeder, and P. Weiss,Phys. Rev. A 136, 1500 (1964).Google Scholar
  13. 9. a.
    D. Saint-James, G. Sarma, and E. Thomas,Type II Superconductors (Pergamon, Oxford, 1969)Google Scholar
  14. 9. b.
    K. Maki, in Superconductivity, R. Parks, ed. (Marcel Dekker, New York, 1969), p. 1035Google Scholar
  15. 9. c.
    A. Abrikosov,Fundamentals of the Theory of Metals (North-Holland, Amsterdam, 1988).Google Scholar
  16. 10. a.
    N. Phillips, R. Fisher, and J. Gordon, inProgress in Low-Temperature Physics, Vol. 13, D. Brewer ed. (North-Holland, Amsterdam, 1992), p. 267Google Scholar
  17. 10. b.
    J. Wadeet al. J. Supercond. 7, 261 (1994).Google Scholar
  18. 11.
    Yu. Ovchinnikov and V. Kresin,Phys. Rev. B 52, 3075 (1995);B 54, 1251 (1996).Google Scholar
  19. 12. a.
    Y. Dalichaouchet al., Phys. Rev. Lett.,64, 599 (1990)Google Scholar
  20. 12. b.
    M. Suzuki and M. Hikita,Phys. Rev. B 44, 249 (1991)Google Scholar
  21. 12. c.
    D. Walkeret al., Phys. Rev. B 51, 9375 (1995).Google Scholar
  22. 13.
    H. Hommaet al., Phys. Rev. B 33, 3562 (1986).Google Scholar
  23. 14.
    V. Kresin and H. Morawitz,Solid State Commun. 74, 1203 (1990).Google Scholar
  24. 15.
    Y. Uemura,Phys. Rev. Lett. 62, 2317 (1989).Google Scholar
  25. 16.
    V. Kresin,Phys. Rev. B 35, 8716 (1987); V. Kresin and S. Wolf,Physica C 158, 76 (1989);Phys. Rev. B 41, 4278 (1990); M. Reeveset al. Phys. Rev. B 47, 6065 (1993).Google Scholar
  26. 17.
    V. Kresin,Phys. Lett. A 122, 434 (1987).Google Scholar
  27. 18.
    S. Chaplotet al., Physica B 174, 378 (1991).Google Scholar
  28. 19. a.
    N. Moriet al., J. Phys. Soc. Jpn. 59, 3839 (1990)Google Scholar
  29. 19. b.
    A. Moultonet al., Phys. Rev. Rev. B 44, 12632 (1991).Google Scholar

Copyright information

© Plenum Publishing Corporation 1996

Authors and Affiliations

  • Vladimir Z. Kresin
    • 1
  • Stuart A. Wolf
    • 2
  • Yu. N. Ovchinnikov
    • 3
  1. 1.Lawrence Berkeley LaboratoryUniversity of CaliforniaBerkeley
  2. 2.Naval Research LaboratoryWashington, D.C.
  3. 3.Landau Institute for Theoretical PhysicsMoscowRussia

Personalised recommendations