Coexistence of Antiferromagnetism and Superconductivity near the Quantum Criticality of the Heavy-Fermion Compound CeRhIn5

T. Mito; S. Kawasaki; Y. Kawasaki; G. -q. Zheng; Y. Kitaoka; D. Aoki; Y . Haga; Y. Ōnuki

doi:10.1103/PhysRevLett.90.077004

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Coexistence of Antiferromagnetism and Superconductivity near the Quantum Criticality of the Heavy-Fermion Compound CeRhIn5

T. Mito, S. Kawasaki, Y. Kawasaki, G. -q. Zheng, Y. Kitaoka, D. Aoki, Y . Haga, Y. Ōnuki

DOI 10.1103/PhysRevLett.90.077004 · Physical Review Letters

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Abstract

We report a study on the interplay between antiferromagnetism (AFM) and superconductivity (SC) in a heavy-fermion compound CeRhIn5 under pressure P=1.75 GPa. The onset of the magnetic order is evidenced from a clear split of In115 nuclear quadrupole resonance spectrum due to the spontaneous internal field below the Néel temperature TN=2.5 K. Simultaneously, bulk SC below Tc=2.0 K is demonstrated by the observation of the Meissner diamagnetism signal whose size is the same as in the exclusively superconducting phase. These results indicate that the AFM coexists homogeneously with the SC at a microscopic level.

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	1.75 GPa	onset
CeRhIn5 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	2.1	Pressure not reported	unknown
UPd2Al3 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	1.8	Pressure not reported	unknown