Magnetic and resistive measurements of the superconducting critical fields of melt-cast Ba0.65K0.35BiO3
W. K. Kwok, U. Welp, G. W. Crabtree, K. G. Vandervoort, R. Hulscher, Y. Zheng, B. Dabrowski, D. G. Hinks
DOI 10.1103/PhysRevB.40.9400 · Physical Review B
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Abstract
The upper and lower critical fields of a melt-cast polycrystalline sample of Ba0.65K0.35BiO3 synthesized by a novel technique are obtained from both resistive and magnetic measurements. The coherence length ξGL, penetration depth λGL, and Ginzburg-Landau parameter κ are determined and the size of the specific-heat jump is predicted. The estimated electron-phonon coupling parameter is about 1.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| Ba0.65K0.35BiO3 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 30 | Pressure not reported | onset |
| Ba0.65K0.35BiO3 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 30 | Pressure not reported | midpoint |
| Ba0.6K0.4BiO3-δ Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 30 | Pressure not reported | unknown |
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