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Electron-Nuclear Interactions as a Test of Crystal-Field Parameters for Low Symmetry Systems: Zeeman-Hyperfine Spectroscopy of Ho$^{3+}$ Doped Y$_2$SiO$_5$ (2103.09343v2)
Published 16 Mar 2021 in cond-mat.mtrl-sci, physics.atom-ph, and quant-ph
Abstract: High-resolution Zeeman spectroscopy of electronic-nuclear hyperfine levels of ${5\mathrm{I}_8}\rightarrow{5\mathrm{I}_7}$ transitions in Ho${3+}$:Y$_2$SiO$_5$ is reported. Crystal-field parameters determined for the two $C_1$ symmetry sites in Er${3+}$:Y$_2$SiO$_5$ are successfully used to model the Zeeman-hyperfine data, including the prediction of avoided crossings between hyperfine levels under the influence of an external magnetic field. The two six- and seven-coordinate substitutional sites may be distinguished by comparing the spectra with crystal-field calculations.