Magnetic order and crystalline electric field excitations of the quantum critical heavy fermion ferromagnet CeRh${}_6$Ge${}_4$

J. W. Shu, D. T. Adroja, A. D. Hillier +10

CeRh${}_6$Ge${}_4$ is an unusual example of a stoichiometric heavy fermion ferromagnet, which can be cleanly tuned by hydrostatic pressure to a quantum critical point. In order to unde…