Superconductivity of platinum hydride
Takahiro Matsuoka, Masahiro Hishida, Keiji Kuno, Naohisa Hirao, Yasuo Ohishi, Shigeo Sasaki, Kazushi Takahama, Katsuya Shimizu
DOI 10.1103/PhysRevB.99.144511 · Physical Review B
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Abstract
We report the ac magnetic susceptibility, electrical resistance, and x-ray diffraction measurements of PtHx(x≃1) in diamond anvil cells, that reveal the superconducting transition. At 30 GPa, when PtHx is in a P63/mmc structure, PtHx exhibits the superconducting transition at 7 K. Remarkably, the observed Tc is higher than that of powdered Pt by more than three orders of magnitude. It is suggested that the noble metals in the periodic table of elements possibly form a region where hydrides have higher Tc than elements.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| PtHx Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 7 | 30 GPa | onset |
| PtHx Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 4.8 | 36 GPa | onset |
| PtHx Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 6.7 | 32 GPa | onset |
| PtHx Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 7.5 | 35 GPa | onset |
| PtHx Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 7 | 35 GPa | onset |
| Pt Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 0.00138 | Pressure unresolved | unknown |
| PdHx Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 9 | Pressure not reported | unknown |
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