Two superconducting phases in CeRh1−xIrxIn5
M. Nicklas, V. A. Sidorov, H. A. Borges, P. G. Pagliuso, J. L. Sarrao, J. D. Thompson
DOI 10.1103/PhysRevB.70.020505 · Physical Review B
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Abstract
Pressure studies of CeRh1−xIrxIn5 indicate two superconducting phases as a function of x, one with Tc⩾2K for x<0.9 and the other with Tc<1.2K for x>0.9. The higher Tc phase, phase 1, emerges in proximity to an antiferromagnetic quantum-critical point; whereas, Cooper pairing in the lower Tc phase 2 is inferred to arise from fluctuations of a yet to be found magnetic state. The T−x−P phase diagram of CeRh1−xIrxIn5, though qualitatively similar, is distinctly different from that of CeCu2(Si1−xGex)2.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| CeRhIn5 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 2 | 2.5 GPa | unknown |
| CeRhIn5 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 1 | 6.5 GPa | unknown |
| CeIrIn5 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 1.2 | Pressure unresolved | unknown |
| CeRh1-xIrxIn5 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 2 | Pressure not reported | onset |
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