Precursor State to Unconventional Superconductivity in CeIrIn5
Sunil Nair, S. Wirth, M. Nicklas, J. L. Sarrao, J. D. Thompson, Z. Fisk, F. Steglich
DOI 10.1103/PhysRevLett.100.137003 · Physical Review Letters
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Abstract
We present Hall effect and magnetoresistance measurements in the heavy fermion superconductor CeIrIn5. At low temperature, a Kondo coherent state is established. Deviations from Kohler’s rule and a quadratic temperature dependence of the cotangent of the Hall angle are reminiscent of properties observed in the high-temperature superconducting cuprates. A striking observation pertains to the presence of a precursor state—characterized by a change in the Hall mobility—that precedes the superconductivity in this material, in similarity to the pseudogap in the cuprate superconductors.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| CeIrIn5 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 0.4 | Pressure unresolved | unknown |
| CeIrIn5 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 1.2 | Pressure unresolved | onset |
| CeCoIn5 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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