Skip to main content

Thank you for visiting 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.

Superconductivity above 150 K in HgBa2Ca2Cu3O8+δ at high pressures


RECENTLY, superconductivity at >130 K was reported1,2 in multiphase samples of the compound system HgBa2Can−1CunO2n+2+δ (Hg-12(n−l)n) with n = 1, 2, 3,.... Single-phase Hg-1223 was subsequently synthesized and found to be superconducting at a record temperature of 135 K (ref. 3). It remains to be seen if a much higher transition temperature (Tc) than 135K can be achieved in this compound system. The application of pressure generally increases the Tc of underdoped layered cuprates, with a pressure derivative of Tc that decreases with increasing doping4,5. Preliminary studies on Hg-12236 showed a pressure-induced increase in Tc without any sign of saturation up to 17 kbar. Here we report the observation of superconductivity at up to 153 K in Hg-1223 at 150 kbar, with a main transition at 147 K. This observation provides an indication that superconductivity at >150 K may be possible in this system at ambient pressure, if suitable forms of chemical substitution can be found.

Access options

Rent or Buy article

Get time limited or full article access on ReadCube.


All prices are NET prices.


  1. 1

    Schilling, A., Cantoni, M., Guo, J. D. & Ott, H. R. Nature 363, 56–58 (1993).

    ADS  CAS  Article  Google Scholar 

  2. 2

    Gao, L. et al. Physica C213, 261–265 (1993).

    CAS  Article  Google Scholar 

  3. 3

    Huang, Z. J. et al. Physica C (in the press).

  4. 4

    Wijngaarden, R. J., Scholtz, J. J., van Eenige, E. N. & Griessen, R. in Frontiers of High Pressure Research (eds Hochheimer, H. D. & Etters, R. D.) 339–417 (Plenum, New York, 1991).

    Google Scholar 

  5. 5

    Schilling, J. S. & Klotz, S. in Physical Properties of High Temperature Superconductors, Vol. 3 (ed. Ginzberg, D. M.) 59–157 (World Scientific, Singapore, 1992).

    Book  Google Scholar 

  6. 6

    Chu, C. W. J. Superconductivity (in the press).

  7. 7

    Meng, R. L. et al. Physica C (in the press).

  8. 8

    Chu, C. W. & Testardi, L. J. Phys. Rev. Lett. 32, 766–769 (1974).

    ADS  CAS  Article  Google Scholar 

  9. 9

    Eichler, A. & Wittig, J. Z. angew. Phys. 25, 319–327 (1968).

    CAS  Google Scholar 

  10. 10

    Bireckoven, B. & Wittig, J. J. Phys. E21, 841–848 (1988).

    ADS  CAS  Google Scholar 

  11. 11

    Neumeir, J. J. & Zimmermann, H. A. Phys. Rev. B47, 8386–8388 (1993).

    Google Scholar 

Download references

Author information



Rights and permissions

Reprints and Permissions

About this article

Cite this article

Chu, C., Gao, L., Chen, F. et al. Superconductivity above 150 K in HgBa2Ca2Cu3O8+δ at high pressures. Nature 365, 323–325 (1993).

Download citation

Further reading


By submitting a comment you agree to abide by our Terms and Community Guidelines. If you find something abusive or that does not comply with our terms or guidelines please flag it as inappropriate.


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