Pressure-induced shift of effective Ce valence, Fermi energy and phase boundaries in CeOs${}_4$Sb${}_{12}$

K. Götze, M. J. Pearce, M. J. Coak +9

CeOs${}_4$Sb${}_{12}$, a member of the skutterudite family, has an unusual semimetallic low-temperature $\mathcal{L}$-phase that inhabits a wedge-like area of the field $H$ - temperature $…