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Electron paramagnetic resonance enhanced crystal field analysis for low point-group symmetry systems: C$_{2v}$ sites in Sm$^{3+}$:CaF$_2$/SrF$_2$ (1809.07397v4)
Published 19 Sep 2018 in cond-mat.mtrl-sci and physics.atom-ph
Abstract: We present a comprehensive spectroscopic study of C${2v}$ point-group symmetry sites in Sm${3+}$:CaF$_2$/SrF$_2$ codoped with either NaF or LiF. Data includes electron paramagnetic resonance measurements of Zeeman and hyperfine interactions for the ground state, as well as site-selective excitation and fluorescence spectroscopy up to the ${4}$G${5/2}$ multiplet. Inclusion of the EPR data allowed us to determine unique crystal-field parameters. The parameters provide information about the geometry of the sites and the nature of the interactions between the Sm${3+}$ dopant and the alkaline earth co-dopant.