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Reply to: Absence of evidence of superconductivity in sulfur hydride in optical reflectance experiments

Nature Physics volume 18, pages 1036–1037 (2022)Cite this article

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The Original Article was published on 11 August 2022

replying to J. E. Hirsch & F. Marsiglio Nature Physics https://doi.org/10.1038/s41567-022-01693-x (2022)

In their Matters Arising1, Hirsch and Marsiglio challenge our2 spectroscopic study of superconductivity in H3S. They argue that “the measured data did not provide evidence that the system undergoes a transition to a superconducting state”. We show here how a reasonned treatment of the ratio of the reflectance in the superconducting state to the normal state demonstrates unambiguously the presence of a gap associated to the superconducting transition.

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Fig. 1: The raw and corrected data for three temperatures.

References

  1. Hirsch, J. E. & Marsiglio, F. Absence of evidence of superconductivity in sulfur hydride in optical reflectance experiments. Nat. Phys. https://doi.org/10.1038/s41567-022-01693-x (2022).

  2. Capitani, F. et al. Spectroscopic evidence of a new energy scale for superconductivity in H3S. Nat. Phys. 13, 859–863 (2017).

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  3. Drozdov, A., Eremets, M., Troyan, I., Ksenofontov, V. & Shylin, S. Conventional superconductivity at 203 kelvin at high pressures in the sulfur hydride system. Nature 525, 73–76 (2015).

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  4. Li, Y., Hao, J., Liu, H., Li, Y. & Ma, Y. The metallization and superconductivity of dense hydrogen sulfide. J. Chem. Phys. 140, 174712 (2014).

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  5. Carbotte, J. P., Nicol, E. J. & Timusk, T. Detecting superconductivity in the high pressure hydrides and metallic hydrogen from optical properties. Phys. Rev. Lett. 121, 047002 (2018).

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Authors and Affiliations

  1. Synchrotron SOLEIL, AILES Beamline, Saint-Aubin, France

    P. Roy, J.-B. Brubach, F. Capitani & B. Langerome

  2. Biogeochemistry Department, Max Planck Institute for Chemistry, Mainz, Germany

    A. Drozdov & M. I. Eremets

  3. Department of Physics, University of Guelph, Guelph, ON, Canada

    E. J. Nicol

  4. Department of Physics and Astronomy, McMaster University, Hamilton, ON, Canada

    T. Timusk

Authors
  1. P. Roy
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  2. J.-B. Brubach
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  3. F. Capitani
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  4. B. Langerome
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  5. A. Drozdov
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  6. M. I. Eremets
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  7. E. J. Nicol
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  8. T. Timusk
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Contributions

T.T., P.R. and E.J.N. wrote the answer. J.B.B. and P.R. treated the data and designed the figures. All authors verified the content.

Corresponding authors

Correspondence to P. Roy or T. Timusk.

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Roy, P., Brubach, JB., Capitani, F. et al. Reply to: Absence of evidence of superconductivity in sulfur hydride in optical reflectance experiments. Nat. Phys. 18, 1036–1037 (2022). https://doi.org/10.1038/s41567-022-01694-w

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