Skip to main content

Thank you for visiting nature.com. You are using a browser version with limited support for CSS. To obtain the best experience, we recommend you use a more up to date browser (or turn off compatibility mode in Internet Explorer). In the meantime, to ensure continued support, we are displaying the site without styles and JavaScript.

  • News & Views
  • Published:

Superconductivity

Mind the double gap

Magnesium diboride superconducts at an unexpectedly high temperature. It is now clear that the material also has an unusual, but long-sought, 'double energy gap' structure that influences its superconductivity.

This is a preview of subscription content, access via your institution

Relevant articles

Open Access articles citing this article.

Access options

Buy this article

Prices may be subject to local taxes which are calculated during checkout

Figure 1: Double-gap superconductor.

References

  1. Nagamatsu, J., Nakagawa, N., Muranaka, T., Zenitani, Y. & Akimitsu, J. Nature 410, 63–64 (2001).

    Article  CAS  Google Scholar 

  2. Grant, P. Nature 411, 532–533 (2001).

    Article  CAS  Google Scholar 

  3. Choi, E. J., Roundy, D., Sun, H., Cohen, M. L. & Loule, S. G. Nature 418, 758–760 (2002).

    Article  CAS  Google Scholar 

  4. Liu, A. Y., Mazin, I. I. & Kortus, J. Phys. Rev. Lett. 87, 087005 (2001).

    Article  CAS  Google Scholar 

  5. Golubov, A. A. et al. J. Phys. Cond. Mater. 14, 1353–1360 (2002).

    Article  CAS  Google Scholar 

  6. Kondo, J. Prog. Theor. Phys. 29, 1–9 (1963).

    Article  CAS  Google Scholar 

  7. Leggett, A. J. Prog. Theor. Phys. 36, 901–930 (1966).

    Article  CAS  Google Scholar 

  8. Sharapov, S. G., Gusynin, V. P. & Beck, H. Preprint cond-mat/0205131 (2002); http://xxx.lanl.gov

  9. Rosner, H., Kitaigorodsky, A. & Pickett, W. E. Phys. Rev. Lett. 88, 127001 (2002).

    Article  CAS  Google Scholar 

  10. Saxena, S. S. et al. Nature 406, 587–592 (2000).

    Article  CAS  Google Scholar 

Download references

Author information

Authors and Affiliations

Authors

Corresponding author

Correspondence to Warren Pickett.

Rights and permissions

Reprints and permissions

About this article

Cite this article

Pickett, W. Mind the double gap. Nature 418, 733–734 (2002). https://doi.org/10.1038/418733a

Download citation

  • Issue Date:

  • DOI: https://doi.org/10.1038/418733a

This article is cited by

Search

Quick links

Nature Briefing

Sign up for the Nature Briefing newsletter — what matters in science, free to your inbox daily.

Get the most important science stories of the day, free in your inbox. Sign up for Nature Briefing