Reemergent Superconductivity and Avoided Quantum Criticality in Cd-Doped CeIrIn5 under Pressure
Y. Chen, W. B. Jiang, C. Y. Guo, F. Ronning, E. D. Bauer, Tuson Park, H. Q. Yuan, Z. Fisk, J. D. Thompson, Xin Lu
DOI 10.1103/PhysRevLett.114.146403 · Physical Review Letters
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Abstract
We investigated the electrical resistivity and heat capacity of 1% Cd-doped CeIrIn5 under hydrostatic pressure up to 2.7 GPa, near where long-range antiferromagnetic order is suppressed and bulk superconductivity suddenly reemerges. The pressure-induced Tc is close to that of pristine CeIrIn5 at 2.7 GPa, and no signatures of a quantum critical point under pressure support a local origin of the antiferromagnetic moments in Cd−CeIrIn5 at ambient pressure. Similarities between superconductors CeIrIn5 and CeCoIn5 in response to Cd substitutions suggest a common magnetic mechanism.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| CeCoIn5 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 2.3 | Pressure unresolved | onset |
| CeIrIn5 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 0.4 | Pressure unresolved | unknown |
| CeIr(In0.99Cd0.01)5 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 0.8 | 2.5 GPa | onset |
| CeIr(In0.99Cd0.01)5 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 1 | 2.7 GPa | onset |
| CeIr(In0.99Cd0.01)5 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 1 | 2.56 GPa | zero_resistance |
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