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Absence of evidence of superconductivity in sulfur hydride in optical reflectance experiments

Matters Arising to this article was published on 11 August 2022

The Original Article was published on 19 June 2017

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Fig. 1: Raw data for measured reflectance of H3S.
Fig. 2: Optical data at low energies.
Fig. 3: Optical data at intermediate energies.


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

    Article  Google Scholar 

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

    ADS  Article  Google Scholar 

  3. Hwang, J. a-axis optical conductivity of detwinned ortho-II YBa2Cu3O6.50. Phys. Rev. B 73, 014508 (2006).

    ADS  Article  Google Scholar 

  4. Nicol, E. J. & Carbotte, J. P. Comparison of pressurized sulfur hydride with conventional superconductors. Phys. Rev. B 91, 220507 (2015).

    ADS  Article  Google Scholar 

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The authors are grateful to T. Timusk and P. Roy for providing the raw data and additional information and for helpful discussions. F.M. was supported in part by the Natural Sciences and Engineering Research Council of Canada (NSERC) and by an MIF from the Province of Alberta.

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J.E.H. and F.M. contributed equally to all aspects of the preparation of this work.

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Correspondence to J. E. Hirsch.

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Nature Physics thanks Pascale Roy and the other, anonymous, reviewer(s) for their contribution to the peer review of this work

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Hirsch, J.E., Marsiglio, F. Absence of evidence of superconductivity in sulfur hydride in optical reflectance experiments. Nat. Phys. 18, 1033–1035 (2022).

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