Anisotropic electrical resistivity of the magnetic heavy-fermion superconductor URu2Si2
T. T. M. Palstra, A. A. Menovsky, J. A. Mydosh
DOI 10.1103/PhysRevB.33.6527 · Physical Review B
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Abstract
Electrical-resistivity measurements ρ(T,H) on single-crystal URu2Si2 have been performed between 0.3 and 300 K in fields up to 7 T. ρ(T) is highly anisotropic with the 300-K values parallel to the a and c axes differing by a factor of 2. Both directions exhibit a dρ/dT<0 down to 80 K, followed by a steep decrease in ρ below 50 K. An upper antiferromagnetic transition is clearly discerned by a ‘‘Cr-like’’ anomaly at ≊17 K which also marks the onset of a strong, positive ρ(H). Below 4 K ρ(T) is isotropic and goes to zero at the superconducting transition Tc=0.8 K.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| URu2Si2 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 0.8 | Pressure not reported | zero_resistance |
| URu2Si2 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 0.7 | Pressure not reported | midpoint |
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