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RETRACTED: Synthesis of Yttrium Superhydride Superconductor with a Transition Temperature up to 262 K by Catalytic Hydrogenation at High Pressures
Open accessAbstract
The recent observation of room-temperature superconductivity will undoubtedly lead to a surge in the discovery of new, dense, hydrogen-rich materials. The rare earth metal superhydrides are predicted to have very high-T_{c} superconductivity that is tunable with changes in stoichiometry or doping. Here we report the synthesis of an yttrium superhydride that exhibits superconductivity at a critical temperature of 262 K at 182±8 GPa. A palladium thin film assists the synthesis by protecting the sputtered yttrium from oxidation and promoting subsequent hydrogenation. Phonon-mediated superconductivity is established by the observation of zero resistance, an isotope effect and the reduction of T_{c} under an external magnetic field. The upper critical magnetic field is 103 T at zero temperature.
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Citations
Cited by
Superconductivity up to 243 K in the yttrium-hydrogen system under high pressure
Kong, P., Minkov, V. S., Kuzovnikov, M. A., Drozdov, A. P., Besedin, S. P., Mozaffari, S., Balicas, L., Balakirev, F. F., Prakapenka, V. B., Chariton, S., et al. (2021) · Nature Communications · doi:10.1038/s41467-021-25372-2 · Cited by 528
The Quest for High-Temperature Superconductivity: Experimental Advances in Ternary Hydrides
Zhang, M., Guo, J., Wang, Y., Chen, S., Wu, X., Wei, J., Wang, H., & Huang, X. (2026) · Annalen der Physik · doi:10.1002/andp.202500476 · Cited by 2
Metadata
- Authors
- Snider, E., Dasenbrock-Gammon, N., McBride, R., Wang, X., Meyers, N., Lawler, K. V., Zurek, E., Salamat, A., & Dias, R. P.
- Venue
- Physical Review Letters
- Publisher
- American Physical Society (APS)
- Published
- 2021-03-19
- Volume
- 126
- Issue
- 11
- Pages
- 117003-117003
- ISSN
- 0031-9007 (ISSN-L)
- 1079-7114
- OpenAlex
- W3138709140
- Cited by
- 261
- References
- 0
- FWCI
- 31.80
- Type
- journal article
- Language
- en
- Status
- Retracted
- Open access
- green
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- CoChat. (2026). Citation check: RETRACTED: Synthesis of Yttrium Superhydride Superconductor with a Transition Temperature up to 262 K by Catalytic Hydrogenation at High Pressures. https://app.cochat.ai/papers/10.1103/physrevlett.126.117003
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- Snider, E., Dasenbrock-Gammon, N., McBride, R., Wang, X., Meyers, N., Lawler, K. V., Zurek, E., Salamat, A., & Dias, R. P. (2021). RETRACTED: Synthesis of Yttrium Superhydride Superconductor with a Transition Temperature up to 262 K by Catalytic Hydrogenation at High Pressures. Physical Review Letters. https://doi.org/10.1103/physrevlett.126.117003
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.
