Superconductivity and heavy fermion behavior in PrOs4Sb12
E. D. Bauer, N. A. Frederick, P.-C. Ho, V. S. Zapf, M. B. Maple
DOI 10.1103/PhysRevB.65.100506 · Physical Review B
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Abstract
Superconductivity has been observed in PrOs4Sb12 at TC=1.85 K and appears to involve heavy fermion quasiparticles with an effective mass m*∼50 me as inferred from the jump in the specific heat at TC, the upper critical field near TC, and the normal state electronic specific heat. Thermodynamic and transport measurements suggest that the heavy fermion state has a quadrupolar origin, although a magnetic origin cannot be completely ruled out.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| PrOs4Sb12 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 1.85 | Pressure not reported | onset |
| PrOs4Sb12 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 1.86 | Pressure not reported | zero_resistance |
| PrOs4Sb12 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 1.85 | Pressure not reported | midpoint |
| CeCu2Si2 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
| UBe13 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
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