Nature 414, 434–436 (2001).
This manuscript was, in part, the subject of an independent investigation1 conducted at the behest of Bell Laboratories, Lucent Technologies. The independent committee reviewed concerns related to the validity of data associated with the device measurements described in the paper.
J.H.S.: As a result of the committee's findings1, I am issuing a retraction of the paper. I note nevertheless that this paper may also contain some legitimate ideas and contributions.
M.D., X.Z.Z., E.A. and C.D.C.: In the light of the recent findings of the investigation1 committee chaired by Professor Beasley, we would like to warn readers about the validity of the field-effect doping data presented in this paper and issue a retraction of this article. Our laboratory specializes in the synthesis, by molecular beam epitaxy, of copper oxide thin films. In May 2001, we initiated a collaboration with J.H.S., in which our role was limited to the synthesis of a thin-film sample of CaCuO2. We can certify the quality (composition and structure) of the sample, and we are ready to prepare such samples for other serious scientific teams who want to try to reproduce these results.
M.L. and F.C.B.: We comment here as researchers at Wintici SA, a technology company. The synthesis of the CaCuO2 sample reported in the paper was undertaken in collaboration with researchers from ESPCI, and we can vouch for its quality. But in the light of the committee's findings1, we wish to issue a retraction of the paper. We note nevertheless that this paper may also contain some legitimate ideas and contributions.
References
Beasley, M. R., Datta, S., Kogelnik, H., Kroemer, H. & Monroe, D. Report of the Investigation Committee on the Possibility of Scientific Misconduct in the Work of Hendrik Schön and Coauthors. 〈http://publish.aps.org/reports/〉 (doi:10.1103/aps.reports.lucent) (Lucent Technologies/American Physical Society, September 2002).
Additional information
The online version of the original article can be found at 10.1038/35106539
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Schön, J., Dorget, M., Beuran, F. et al. Retraction Note to: Superconductivity in CaCuO2 as a result of field-effect doping. Nature 422, 92 (2003). https://doi.org/10.1038/nature01462
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DOI: https://doi.org/10.1038/nature01462
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