Carbon content drives high temperature superconductivity in a carbonaceous sulfur hydride below 100 GPa

Carbon content drives high temperature superconductivity in a carbonaceous sulfur hydride below 100 GPa

We report a previously unobserved superconducting state of the photosynthesized carbonaceous sulfur hydride (C-S-H) system with a maximum T C of 191(1) K below 100 GPa. The properties of C-S-H are dependent on carbon content, and X-ray diffraction and simulations reveal the system remains molecular-...

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Veröffentlicht in:Chemical communications (Cambridge, England) England), 2022-08, Vol.58 (65), p.964-967
Hauptverfasser: Smith, G. Alexander, Collings, Ines E, Snider, Elliot, Smith, Dean, Petitgirard, Sylvain, Smith, Jesse S, White, Melanie, Jones, Elyse, Ellison, Paul, Lawler, Keith V, Dias, Ranga P, Salamat, Ashkan
Format: Artikel
Sprache:eng
Schlagworte:
Carbon content
High temperature
Hydrides
Sulfur
Superconductivity
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Zusammenfassung:We report a previously unobserved superconducting state of the photosynthesized carbonaceous sulfur hydride (C-S-H) system with a maximum T C of 191(1) K below 100 GPa. The properties of C-S-H are dependent on carbon content, and X-ray diffraction and simulations reveal the system remains molecular-like up to 100 GPa. Carbon concentration greatly influences structural and electronic properties of carbonaceous sulfur hydride, almost halving the pressure required for high-TC superconductivity.
ISSN:1359-7345
1364-548X
DOI:10.1039/d2cc03170a