Superconducting properties of filled skutterudite La0.8Rh4P12
M. Imai, M. Akaishi, E. H. Sadki, T. Aoyagi, T. Kimura, I. Shirotani
DOI 10.1103/PhysRevB.75.184535 · Physical Review B
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Abstract
The superconducting properties of filled skutterudite La0.8Rh4P12 synthesized at 9.4GPa and 1473K using a belt-type apparatus were investigated by measuring the magnetization, electrical resistivity, and specific heat. Filled skutterudite La0.8Rh4P12 is a type-II superconducting material with a critical temperature for the superconducting transition, TC, of 14.9K. The upper critical field HC2(0) and Ginzburg-Landau coherent length ξ(0) were determined to be 167(1)kOe and 4.41(1)nm, respectively. The electronic heat-capacity coefficient γn and the Debye temperature ΘD were 25.1(8)mJ∕molK2 and 459(12)K, respectively. Using TC and ΘD, the electron-phonon coupling constant λ was estimated to be approximately 0.7, suggesting that La0.8Rh4P12 is an intermediately coupled superconducting material.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| La0.8Rh4P12 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 14.9 | Pressure not reported | onset |
| La0.8Rh4P12 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 14.9 | Pressure not reported | midpoint |
| La0.8Rh4P12 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 14.2 | Pressure not reported | unknown |
| LaxRh4P12 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 17 | Pressure not reported | unknown |
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