Coexistence of antiferromagnetism and superconductivity in CeRhIn5 under high pressure and magnetic field
G. Knebel, D. Aoki, D. Braithwaite, B. Salce, J. Flouquet
DOI 10.1103/PhysRevB.74.020501 · Physical Review B
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Abstract
New light is shed on the interplay between antiferromagnetism and superconductivity by a detailed study of the phase diagram of CeRhIn5 under high pressure and magnetic field using ac calorimetry. In zero field, the antiferromagnetic order vanishes suddenly above pc⋆=2GPa leading to a pure superconducting ground state. An inhomogeneous superconducting phase transition is found below pc⋆. Above pc⋆, the application of an external magnetic field H∥ab induces a second transition, which suggests the reentrance of antiferromagnetism, its coexistence with superconductivity, and also the important role of the vortices. This field-induced supplementary state vanishes around the expected quantum critical point, which will occur in the absence of superconductivity.
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. | 2.2 | Pressure unresolved | unknown |
| CeRhIn5 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
| CeRhIn5 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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