Transport properties of the heavy-fermion superconductor PrOs4Sb12
H. Sugawara, M. Kobayashi, S. Osaki, S. R. Saha, T. Namiki, Y. Aoki, H. Sato
DOI 10.1103/PhysRevB.72.014519 · Physical Review B
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Abstract
We have measured the electrical resistivity, thermoelectric power, Hall coefficient, and magnetoresistance (MR) on single crystals of PrOs4Sb12, LaOs4Sb12, and NdOs4Sb12. All the transport properties in PrOs4Sb12 are similar to those in LaOs4Sb12 and NdOs4Sb12 at high temperatures, indicating the localized character of 4f electrons. The transverse MR both in LaOs4Sb12 and PrOs4Sb12 tends to saturate for wide field directions, indicating these compounds to be uncompensated metals with no open orbit. We have determined the phase diagram of the field induced ordered phase by the MR measurement for all the principle field directions, which indicates an unambiguous evidence for the Γ1 singlet crystalline electric field ground state.
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 | unknown |
| LaOs4Sb12 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 0.74 | Pressure not reported | unknown |
| LaOs4Sb12 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 0.74 | Pressure not reported | unknown |
| PrRu4Sb12 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 1 | Pressure not reported | unknown |
| LaRu4Sb12 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 3.5 | Pressure not reported | unknown |
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