Superconductivity in germanium clathrate Ba8Ga16Ge30
J. D. Bryan, V. I. Srdanov, G. D. Stucky, D. Schmidt
DOI 10.1103/PhysRevB.60.3064 · Physical Review B
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Abstract
We report type-II superconductivity in the germanium clathrate compound, Ba8Ga16Ge30 with critical temperature, Tc=7.5±0.2K as determined by magnetic susceptibility measurements. Barium atoms occupy cage voids provided by a covalent sp3 hybridized network of gallium and germanium. Magnetic susceptibility and transport measurements were used to characterize the transition.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| Ba8Ga16Ge30 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 7.5 | Pressure not reported | onset |
| Ba8Ga16Ge30 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 4.8 | Pressure not reported | unknown |
| (Na,Ba)xSi46 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 4 | Pressure not reported | unknown |
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