Zeeman Fluorescence Studies of Neodymium in Calcium Tungstate

摘要

Polarized Zeeman fluorescence spectra of triply ionized neodymium in sodium compensated calcium tungstate have been taken at 2deg;K. Values ofgVerbar;for the4F3sol;2Ggr;7,thinsp; 8and several levels of the4Iground term have been obtained. Accurate energy and polarization measurements were made, allowing assignment ofS4irreducible representations for all 11 levels of the4I9sol;2and4I11sol;2multiplets. Results are found to be consistent with recent predictions from crystal field calculations employing an effective spinmdash;orbit Hamiltonian. Summation of thegpar;'sfor the threeGgr;5,thinsp; 6levels of the4I11sol;2multiplet yields a value of minus;7.53plusmn; 0.19, whereas the partialghyphen;sum rule predictsG11sol;2,thinsp; 6,thinsp; 3sol;2lpar;Ggr;5,thinsp; 6rpar; equals; minus; 8.69and the crystal field calculations yield minus;8.47.