Skip to main content
SpringerLink
Log in

A possible explanation for the isotope effect in high-T c and Rb3C60 superconductors

  • Published:
Journal of Superconductivity Aims and scope Submit manuscript

Abstract

The role of pair breaking effects on the isotope effect coefficient is investigated using the generalized Abrikosov and Gorkov theory of superconductors. It is found that the pair breaking effects enhance the isotope effect coefficient. This provides a plausible explanation for the enhancement of the isotope effect coefficient as a function of impurity concentration in yttrium-, europium-, and lanthanum-based high-T c superconductors. It may also explain the very large value of the isotope effect coefficient in Rb3C60 superconductors provided some intrinsic disorder is assumed.

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. H. Frohlich,Phys. Rev. 79, 845 (1950).

    Google Scholar 

  2. E. Maxvell,Phys. Rev. 78, 477 (1950); C. A. Reynoldset al., Phys. Rev. 78, 487 (1950).

    Google Scholar 

  3. J. Bardeen, L. N. Cooper, and J. R. Schrieffer,Phys. Rev. 108, 1175 (1957).

    Google Scholar 

  4. P. B. Allen and R. C. Dynes,Phys. Rev. B 12, 905 (1975); P. Singh,Praman J. Phys. 29, L523 (1987).

    Google Scholar 

  5. B. Batloget al., Phys. Rev. Lett. 58, 2333 (1987);ibid.,59, 912 (1987); M. Gurvitchet al., Physica C 153–155, 1369 (1988); J. P. Franket al., ibid.,164, 753 (1989);ibid.,185–189, 1379 (1991).

    Google Scholar 

  6. J. P. Carbotte,Rev. Mod. Phys. 62, 1127 (1990).

    Google Scholar 

  7. T. W. Ebbesenet al., Nature (London) 355, 620 (1992).

    Google Scholar 

  8. T. Galbaataret al., Physica C 185-189, 1529 (1991).

    Google Scholar 

  9. E. Schachingeret al., Phys. Rev. B 42, 406 (1990).

    Google Scholar 

  10. J. P. Carbotte, M. Greenson, and M. Perez-Gonzalez,Phys. Rev. Lett. 66, 1789 (1991).

    Google Scholar 

  11. A. A. Abrikosov and L. P. Gorkov,Sov. Phys. JETP 12, 1243 (1961).

    Google Scholar 

  12. P. Hohenberg,Sov. Phys. JETP 18, 834 (1964); V. A. Moskalenkoet al., Sov. Phys. Usp. 34, 717 (1991).

    Google Scholar 

  13. B. I. Belevtsev,Sov. Phys. Usp. 33, 36 (1991).

    Google Scholar 

Download references

Author information

Author notes

  1. P. Singh & R. Kishore

    Present address: Physics Department, G. B. Pant University, 263145, Pantnagar, India

Authors and Affiliations

  1. Instituto Nacional de Pesquisas Espaciais-INPE, C.P. 515, 12201-970, S. J. Campos, S.P., Brazil

    P. Singh

Authors
  1. P. Singh
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. R. Kishore
    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

Singh, P., Kishore, R. A possible explanation for the isotope effect in high-T c and Rb3C60 superconductors. J Supercond 8, 9–10 (1995). https://doi.org/10.1007/BF00732233

Download citation

  • Received:

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF00732233

Key words

Search

Navigation