Probing the nodal gap in the pressure-induced heavy fermion superconductor CeRhIn5

Details Probing the nodal gap in the pressure-induced heavy fermion superconductor CeRhIn5 Probing the nodal gap in the pressure-induced heavy fermion superconductor CeRhIn5

2008-06-20

arxiv.org/abs/0806.3308v1

Physics

Condensed Matter

Superconductivity

5pages, 4 figures

Scientific paper

10.1103/PhysRevLett.101.177002

We report field-orientation specific heat studies of the pressure-induced heavy fermion superconductor CeRhIn5. Theses experiments provide the momentum-dependent superconducting gap function for the first time in any pressure-induced superconductor. In the coexisting phase of superconductivity and antiferromagnetism, field rotation within the Ce-In plane reveals four-fold modulation in the density of states, which favors a d-wave order parameter and constrains a theory of the interplay between superconductivity and magnetism.

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