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  Emergence of superconductivity in doped H2O ice at high pressure

Flores Livas, J. A., Sanna, A., Graužinytė, M., Davydov, A., Goedecker, S., & Marques, M. A. L. (2017). Emergence of superconductivity in doped H2O ice at high pressure. Scientific Reports, 7: 6825. doi:10.1038/s41598-017-07145-4.

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s41598-017-07145-4.pdf (Publisher version), 6MB
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https://doi.org/10.1038/s41598-017-07145-4 (Publisher version)
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Flores Livas, José A.1, Author
Sanna, Antonio2, Author              
Graužinytė, Miglė1, Author
Davydov, Arkadiy1, Author
Goedecker, Stefan1, Author
Marques, Miguel A. L.1, Author
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1External Organizations, ou_persistent22              
2Max Planck Institute of Microstructure Physics, Max Planck Society, ou_2415691              

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 Abstract: We investigate the possibility of achieving high-temperature superconductivity in hydrides under pressure by inducing metallization of otherwise insulating phases through doping, a path previously used to render standard semiconductors superconducting at ambient pressure. Following this idea, we study H2O, one of the most abundant and well-studied substances, we identify nitrogen as the most likely and promising substitution/dopant. We show that for realistic levels of doping of a few percent, the phase X of ice becomes superconducting with a critical temperature of about 60 K at 150 GPa. In view of the vast number of hydrides that are strongly covalent bonded, but that remain insulating up to rather large pressures, our results open a series of new possibilities in the quest for novel high-temperature superconductors.

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 Dates: 2017-07-28
 Publication Status: Published online
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 Identifiers: BibTex Citekey: P12997
DOI: 10.1038/s41598-017-07145-4
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Title: Scientific Reports
  Abbreviation : Sci. Rep.
Source Genre: Journal
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Publ. Info: London, UK : Nature Publishing Group
Pages: - Volume / Issue: 7 Sequence Number: 6825 Start / End Page: - Identifier: ISSN: 2045-2322
CoNE: https://pure.mpg.de/cone/journals/resource/2045-2322