Direct determination of the crystal field parameters of Dy, Er and Yb impurities in the skutterudite compound CeFe${}_4$P${}_{12}$ by Electron Spin Resonance

D. J. Garcia, F. A. Garcia, J. G. S. Duque +5

Despite extensive research on the skutterudites for the last decade, their electric crystalline field ground state is still a matter of controversy. We show that Electron Spin Reso…