CeMIn5(M=Co, Ir, Rh) Heavy Fermion Superconductors and the Utility of High Magnetic Fields

We review the properties of the recently discovered CeMIn₅ (M=Co, Ir, Rh) heavy fermion superconductors and discuss the present state of our understanding of these materials. A particular focus is the role that magnetic fields have played in elucidating the properties of these materials. Specifically, we discuss quantum oscillation measurements on CeMIn₅, the influence of applied field on the linear coefficient of specific heat, γ, and the nature of the H-T phase diagrams in both the normal and superconducting states of these materials.