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; P. G. Pagliuso; C. Rettori; P. Schlottmann; M. S. Torikachvili; S. B. Oseroff

doi:10.1103/PhysRevB.78.174428

paper

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

arXiv:0811.2972 · doi:10.1103/PhysRevB.78.174428

Abstract

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 Resonance (ESR) measurements can determine the full set of crystal field parameters (CFPs) for the Th cubic symmetry (Im3) of the Ce $_{1 - x}$ R $_{x}$ Fe $_{4}$ P $_{12}$ (R = Dy, Er, Yb, $x ≲ 0.003$ ) skutterudite compounds. From the analysis of the ESR data the three CFPs, B4c, B6c and B6t were determined for each of these rare-earths at the Ce $^{3 +}$ site. The field and temperature dependence of the measured magnetization for the doped crystals are in excellent agreement with the one predicted by the CFPs Bnm derived from ESR.

7 pages, 5 figures, to appear in PRB

Direct determination of the crystal field parameters of Dy, Er and Yb impurities in the skutterudite compound CeFe4​P12​ by Electron Spin Resonance

Abstract

References in corpus (2)

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