Skip to main content
SpringerLink
Log in

The superconducting state of YBa2Cu3O7−δ

  • Papers Based On Oral Presentations
  • Published:
Journal of Low Temperature Physics Aims and scope Submit manuscript

Abstract

Many low temperature properties of high Tc superconductors deviate significantly from the detailed predictions of BCS theory. Here we discuss whether these effects could be caused by either: (a) an unconventional pairing state, or (b) local randomness in the gap function due to the intrinsic disorder. We review recent experiments pertinent to these questions: Josephson effects in (001) oriented planar junctions between YBa2Cu3O7-δ and classic superconductors and the temperature dependence of the a-b plane electro-magnetic penetration depth at low temperatures. We also calculate the density of states of s-wave superconductors with local quenched disorder in the gap function so as to determine whether s-wave pairing could be consistent with the low energy quasiparticle excitations seen in many experiments.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Similar content being viewed by others

References

  1. S.L. Cooper and M.V. Klein,Comments Cond. Mat. Phys. 15, 99 (1990).

    Google Scholar 

  2. T. Pham, H.D. Drew, S.M. Mosley and J.Z. Liu,Phys. Rev. B. 41, 11681 (1990).

    Google Scholar 

  3. M. Gurvitchet al., Phys. Rev. Lett. 63, 1008 (1989).

    Google Scholar 

  4. J-X. Liuet al., Phys. Rev. Lett. 67, 2195 (1991).

    Google Scholar 

  5. S.E. Barrett,Phys. Rev. Lett. 66, 108 (1991).

    Google Scholar 

  6. D. A. Bonnet al., unpublished

  7. R.C. Yuet al., University of Illinois preprint.

  8. J.F. Annett, N.D. Goldenfeld and S.R. Renn,Phys. Rev. B.,43, 2778 (1991).

    Google Scholar 

  9. J.F. Annett, N.D. Goldenfeld, S.R. Renn, inPhysical Properties of High Temperature Superconductors II, D.M. Ginsberg (ed.) (World Scientific, New Jersey, 1990).

    Google Scholar 

  10. For reviews see: L.G. Gor'kov,Sov. Sci. Rev. A. Phys. 9, 1 (1987); J. F. Annett, Adv. Phys.39, 83 (1990).

    Google Scholar 

  11. S.K. Yip, O. F. De Alcantra Bonfim and P. Kumar,Phys. Rev. B 41, 11214 (1990).

    Google Scholar 

  12. L.H. Greeneet al. Physica C 162–164, 1069 (1990); L. H. Greeneet al. inHigh Temperature Superconductors: Fundamental Properties and Normal Material Processing, D. Christen, J. Naryan and L.F. Schneemayer (eds.) (Materials Research Society, Pittsburgh, 1990), p. 991.

    Google Scholar 

  13. J. Kwo, T.A. Fulton, M. Hong and P.L. Gammel,Appl. Phys. Lett. 56, 788 (1990).

    Google Scholar 

  14. H. Akoh, C. Camerlingo and S. Takada,Appl. Phys. Lett. 56, 1487 (1990).

    Google Scholar 

  15. J. Yoshida, T. Hashimoto, S. Inoue and K. Mizushima,Physica C 185–189, 1923 (1991).

    Google Scholar 

  16. M.D. Lee, D. Lew, C.B. Eom, T.H. Geballe and M.R. Beasley,Appl. Phys. Lett. 57, 1152 (1990).

    Google Scholar 

  17. Mark Lee, private communication.

  18. M. Takigawa, P.C. Hammel, R.H. Heffner and Z. Fisk,Phys. Rev. B. 39, 7371 (1989); S.E. Barrettet al., Phys. Rev. B. 41, 6823 (1990).

    Google Scholar 

  19. J.M. Pond,et al., Appl. Phys. Lett. 59, 3033 (1991).

    Google Scholar 

  20. S.M. Anlageet al., Phys. Rev. B 44, 9764 (1991).

    Google Scholar 

  21. A.T. Fioryet al., Phys. Rev. Lett. 61, 1419 (1988).

    Google Scholar 

  22. J. Stewart and N. Goldenfeld, unpublished.

  23. J.W. Halley and H.B. Shore,Phys. Rev. B 37, 525 (1988).

    Google Scholar 

  24. J.C. Phillips and K.M. Rabe,Phys. Rev. B. 44, 2863 (1991).

    Google Scholar 

  25. A.L. Fetter,Phys. Rev. 140, A1921 (1965).

    Google Scholar 

  26. M.P. A. Fisher,Phys. Rev. Lett. 62, 1415 (1989).

    Google Scholar 

  27. P.W. Anderson,J. Phys. Chem Solids 11, 26 (1959).

    Google Scholar 

  28. K. Ziegler,Commun. Math. Phys. 120, 177 (1988).

    Google Scholar 

  29. R. Oppermann,Z. Phys. B. 70, 49 (1988).

    Google Scholar 

  30. R. Haydock,Solid State Physics 35, 215 (1980).

    Google Scholar 

  31. I.M. Lihshits, S.A. Gredeskui and L.A. Pastur,Introduction to the Theory of Disordered Systems, (Wiley, New York, 1988).

    Google Scholar 

  32. E. Brezin and G. Parisi,J. Phys. C:Solid St. Phys. 13, L307 (1980).

    Google Scholar 

  33. See (e.g.) M. Prohammer and J.P. Carbotte,Phys. Rev. B. 43, 5370 (1991).

    Google Scholar 

Download references

Author information

Authors and Affiliations

  1. Physics Department, The Pennsylvania State University, 104 Davey Laboratory, 16802, University Park, Pa.

    James F. Annett

  2. Department of Physics, University of Illinois at Urbana-Champaign, 1110 West Green Street, 61801, Urbana, Il., USA

    Nigel Goldenfeld

Authors
  1. James F. Annett
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. Nigel Goldenfeld
    View author publications

    You can also search for this author in PubMed Google Scholar

Rights and permissions

Reprints and permissions

About this article

Cite this article

Annett, J.F., Goldenfeld, N. The superconducting state of YBa2Cu3O7−δ . J Low Temp Phys 89, 197–206 (1992). https://doi.org/10.1007/BF00692592

Download citation

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF00692592

Keywords

Search

Navigation