ENDOR study of 171Yb3+ in Cs2NaYCl6 to determine Γ8–Γ6 energy splitting

Publisher Website
Google Scholar
Abstract
The ENDOR spectrum of trivalent 171Yb in Cs2NaYCl6 has been measured to determine the crystal field splitting of the 2F7/2 ground level. The pseudonuclear Zeeman correction to the spin Hamiltonian implies that the Γ8 quartet lies 225±10 cm−1 above the Γ6 ground doublet. A reasonable assumption concerning the ratio of fourth and sixth order crystal field terms then predicts the Γ7 doublet at 460 cm−1. Spin Hamiltonian parameters are found to be: g=−2.586±0.002, A=−(688.7±0.1) ×10−4 cm−1, and g′I=+(1.66±0.04) ×10−3, where the sign of the electronic g factor is inferred from theoretical considerations.
Keywords